diff --git a/.babelrc b/.babelrc
deleted file mode 100755
index af0f0c3d..00000000
--- a/.babelrc
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-  "presets": ["es2015"]
-}
\ No newline at end of file
diff --git a/.gitignore b/.gitignore
index 6e40ca75..f7d3a307 100755
--- a/.gitignore
+++ b/.gitignore
@@ -6,9 +6,12 @@ pids
 lib-cov
 coverage
 .grunt
-dist/.local_storage*
+dist/
 build/Release
 node_modules
 test/util/playground.js
 .idea/
 electron*
+
+package-lock.json
+
diff --git a/.npmignore b/.npmignore
index e69de29b..b64d6345 100755
--- a/.npmignore
+++ b/.npmignore
@@ -0,0 +1,4 @@
+examples/
+test/
+.gitignore
+.travis.yml
diff --git a/.travis.yml b/.travis.yml
index d21428df..3de9398f 100755
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,11 +1,8 @@
-language: node_js
-node_js:
-  - "0.12"
-  - "0.11"
-  - "0.10"
-  - "4.2.0"
-  - "iojs-v2"
-sudo: false
-branches:
-  only:
-    - master
\ No newline at end of file
+language: node_js
+node_js:
+  - "6.10"
+  - "7"
+  - "node"
+sudo: false
+notifications:
+  email: false
diff --git a/CHANGELOG.md b/CHANGELOG.md
new file mode 100644
index 00000000..e834754e
--- /dev/null
+++ b/CHANGELOG.md
@@ -0,0 +1,26 @@
+# 2.0.0 [IN PROGRESS]
+#### 💥 Breaking
+* Updated minimum Node.js requirement to v6.10 (oldest LTS).
+* Updated Inquirer.js to v3 from v0.11.
+* Removed `Command#autocompletion` method.
+
+#### 🚀 New
+* Added `Vorpal#title`, `Vorpal#version`, `Vorpal#description`, and `Vorpal#banner` descriptor methods.
+  * Renders in the header of help and menu screens.
+* Added a new options object as the 3rd argument to `Vorpal#command`.
+  * Supports a new `default` option.
+  * Supports the old autocomplete functionality as a fallback.
+* Added a new `vorpal_exit` event.
+
+#### 🐞 Fixed
+* Will now properly exit all scenarios if Ctrl + C is pressed.
+* Now supports slashes in autocomplete list values.
+* Improvements to variadic argument parsing.
+
+#### 🛠 Internal
+* Migrated to 100% ES2015 syntax.
+* Migrated to Yarn from NPM.
+* Migrated to Yarn scripts from Gulp.
+* Updated to no longer require or build with Babel.
+* Updated to the latest ESLint (based off Airbnb config).
+* Removed the `dist` folder from the repository.
diff --git a/dist/autocomplete.js b/dist/autocomplete.js
deleted file mode 100755
index c08fbad9..00000000
--- a/dist/autocomplete.js
+++ /dev/null
@@ -1,445 +0,0 @@
-'use strict';
-
-var _ = require('lodash');
-var strip = require('strip-ansi');
-
-var autocomplete = {
-
-  /**
-   * Handles tabbed autocompletion.
-   *
-   * - Initial tabbing lists all registered commands.
-   * - Completes a command halfway typed.
-   * - Recognizes options and lists all possible options.
-   * - Recognizes option arguments and lists them.
-   * - Supports cursor positions anywhere in the string.
-   * - Supports piping.
-   *
-   * @param {String} str
-   * @return {String} cb
-   * @api public
-   */
-
-  exec: function exec(str, cb) {
-    var self = this;
-    var input = parseInput(str, this.parent.ui._activePrompt.screen.rl.cursor);
-    var commands = getCommandNames(this.parent.commands);
-    var vorpalMatch = getMatch(input.context, commands, { ignoreSlashes: true });
-    var freezeTabs = false;
-
-    function end(str) {
-      var res = handleTabCounts.call(self, str, freezeTabs);
-      cb(undefined, res);
-    }
-
-    function evaluateTabs(input) {
-      if (input.context && input.context[input.context.length - 1] === '/') {
-        freezeTabs = true;
-      }
-    }
-
-    if (vorpalMatch) {
-      input.context = vorpalMatch;
-      evaluateTabs(input);
-      end(assembleInput(input));
-      return;
-    }
-
-    input = getMatchObject.call(this, input, commands);
-    if (input.match) {
-      input = parseMatchSection.call(this, input);
-      getMatchData.call(self, input, function (data) {
-        var dataMatch = getMatch(input.context, data);
-        if (dataMatch) {
-          input.context = dataMatch;
-          evaluateTabs(input);
-          end(assembleInput(input));
-          return;
-        }
-        end(filterData(input.context, data));
-      });
-      return;
-    }
-    end(filterData(input.context, commands));
-  },
-
-  /**
-   * Independent / stateless auto-complete function.
-   * Parses an array of strings for the best match.
-   *
-   * @param {String} str
-   * @param {Array} arr
-   * @return {String}
-   * @api private
-   */
-
-  match: function match(str, arr, options) {
-    arr = arr || [];
-    options = options || {};
-    arr.sort();
-    var arrX = _.clone(arr);
-    var strX = String(str);
-
-    var prefix = '';
-
-    if (options.ignoreSlashes !== true) {
-      var parts = strX.split('/');
-      strX = parts.pop();
-      prefix = parts.join('/');
-      prefix = parts.length > 0 ? prefix + '/' : prefix;
-    }
-
-    var matches = [];
-    for (var i = 0; i < arrX.length; i++) {
-      if (strip(arrX[i]).slice(0, strX.length) === strX) {
-        matches.push(arrX[i]);
-      }
-    }
-    if (matches.length === 1) {
-      // If we have a slash, don't add a space after match.
-      var space = String(strip(matches[0])).slice(strip(matches[0]).length - 1) === '/' ? '' : ' ';
-      return prefix + matches[0] + space;
-    } else if (matches.length === 0) {
-      return undefined;
-    } else if (strX.length === 0) {
-      return matches;
-    }
-
-    var longestMatchLength = matches.reduce(function (previous, current) {
-      for (var i = 0; i < current.length; i++) {
-        if (previous[i] && current[i] !== previous[i]) {
-          return current.substr(0, i);
-        }
-      }
-      return previous;
-    }).length;
-
-    // couldn't resolve any further, return all matches
-    if (longestMatchLength === strX.length) {
-      return matches;
-    }
-
-    // return the longest matching portion along with the prefix
-    return prefix + matches[0].substr(0, longestMatchLength);
-  }
-};
-
-/**
- * Tracks how many times tab was pressed
- * based on whether the UI changed.
- *
- * @param {String} str
- * @return {String} result
- * @api private
- */
-
-function handleTabCounts(str, freezeTabs) {
-  var result;
-  if (_.isArray(str)) {
-    this._tabCtr += 1;
-    if (this._tabCtr > 1) {
-      result = str.length === 0 ? undefined : str;
-    }
-  } else {
-    this._tabCtr = freezeTabs === true ? this._tabCtr + 1 : 0;
-    result = str;
-  }
-  return result;
-}
-
-/**
- * Looks for a potential exact match
- * based on given data.
- *
- * @param {String} ctx
- * @param {Array} data
- * @return {String}
- * @api private
- */
-
-function getMatch(ctx, data, options) {
-  // Look for a command match, eliminating and then
-  // re-introducing leading spaces.
-  var len = ctx.length;
-  var trimmed = ctx.replace(/^\s+/g, '');
-  var match = autocomplete.match(trimmed, data.slice(), options);
-  if (_.isArray(match)) {
-    return match;
-  }
-  var prefix = new Array(len - trimmed.length + 1).join(' ');
-  // If we get an autocomplete match on a command, finish it.
-  if (match) {
-    // Put the leading spaces back in.
-    match = prefix + match;
-    return match;
-  }
-  return undefined;
-}
-
-/**
- * Takes the input object and assembles
- * the final result to display on the screen.
- *
- * @param {Object} input
- * @return {String}
- * @api private
- */
-
-function assembleInput(input) {
-  if (_.isArray(input.context)) {
-    return input.context;
-  }
-  var result = (input.prefix || '') + (input.context || '') + (input.suffix || '');
-  return strip(result);
-}
-
-/**
- * Reduces an array of possible
- * matches to list based on a given
- * string.
- *
- * @param {String} str
- * @param {Array} data
- * @return {Array}
- * @api private
- */
-
-function filterData(str, data) {
-  data = data || [];
-  var ctx = String(str || '').trim();
-  var slashParts = ctx.split('/');
-  ctx = slashParts.pop();
-  var wordParts = String(ctx).trim().split(' ');
-  var res = data.filter(function (item) {
-    return strip(item).slice(0, ctx.length) === ctx;
-  });
-  res = res.map(function (item) {
-    var parts = String(item).trim().split(' ');
-    if (parts.length > 1) {
-      parts = parts.slice(wordParts.length);
-      return parts.join(' ');
-    }
-    return item;
-  });
-  return res;
-}
-
-/**
- * Takes the user's current prompt
- * string and breaks it into its
- * integral parts for analysis and
- * modification.
- *
- * @param {String} str
- * @param {Integer} idx
- * @return {Object}
- * @api private
- */
-
-function parseInput(str, idx) {
-  var raw = String(str || '');
-  var sliced = raw.slice(0, idx);
-  var sections = sliced.split('|');
-  var prefix = sections.slice(0, sections.length - 1) || [];
-  prefix.push('');
-  prefix = prefix.join('|');
-  var suffix = getSuffix(raw.slice(idx));
-  var context = sections[sections.length - 1];
-  return {
-    raw: raw,
-    prefix: prefix,
-    suffix: suffix,
-    context: context
-  };
-}
-
-/**
- * Takes the context after a
- * matched command and figures
- * out the applicable context,
- * including assigning its role
- * such as being an option
- * parameter, etc.
- *
- * @param {Object} input
- * @return {Object}
- * @api private
- */
-
-function parseMatchSection(input) {
-  var parts = (input.context || '').split(' ');
-  var last = parts.pop();
-  var beforeLast = strip(parts[parts.length - 1] || '').trim();
-  if (beforeLast.slice(0, 1) === '-') {
-    input.option = beforeLast;
-  }
-  input.context = last;
-  input.prefix = (input.prefix || '') + parts.join(' ') + ' ';
-  return input;
-}
-
-/**
- * Returns a cleaned up version of the
- * remaining text to the right of the cursor.
- *
- * @param {String} suffix
- * @return {String}
- * @api private
- */
-
-function getSuffix(suffix) {
-  suffix = suffix.slice(0, 1) === ' ' ? suffix : suffix.replace(/.+?(?=\s)/, '');
-  suffix = suffix.slice(1, suffix.length);
-  return suffix;
-}
-
-/**
- * Compile all available commands and aliases
- * in alphabetical order.
- *
- * @param {Array} cmds
- * @return {Array}
- * @api private
- */
-
-function getCommandNames(cmds) {
-  var commands = _.map(cmds, '_name');
-  commands = commands.concat.apply(commands, _.map(cmds, '_aliases'));
-  commands.sort();
-  return commands;
-}
-
-/**
- * When we know that we've
- * exceeded a known command, grab
- * on to that command and return it,
- * fixing the overall input context
- * at the same time.
- *
- * @param {Object} input
- * @param {Array} commands
- * @return {Object}
- * @api private
- */
-
-function getMatchObject(input, commands) {
-  var len = input.context.length;
-  var trimmed = String(input.context).replace(/^\s+/g, '');
-  var prefix = new Array(len - trimmed.length + 1).join(' ');
-  var match;
-  var suffix;
-  commands.forEach(function (cmd) {
-    var nextChar = trimmed.substr(cmd.length, 1);
-    if (trimmed.substr(0, cmd.length) === cmd && String(cmd).trim() !== '' && nextChar === ' ') {
-      match = cmd;
-      suffix = trimmed.substr(cmd.length);
-      prefix += trimmed.substr(0, cmd.length);
-    }
-  });
-
-  var matchObject = match ? _.find(this.parent.commands, { _name: String(match).trim() }) : undefined;
-
-  if (!matchObject) {
-    this.parent.commands.forEach(function (cmd) {
-      if ((cmd._aliases || []).indexOf(String(match).trim()) > -1) {
-        matchObject = cmd;
-      }
-      return;
-    });
-  }
-
-  if (!matchObject) {
-    matchObject = _.find(this.parent.commands, { _catch: true });
-    if (matchObject) {
-      suffix = input.context;
-    }
-  }
-
-  if (!matchObject) {
-    prefix = input.context;
-    suffix = '';
-  }
-
-  if (matchObject) {
-    input.match = matchObject;
-    input.prefix += prefix;
-    input.context = suffix;
-  }
-  return input;
-}
-
-/**
- * Takes a known matched command, and reads
- * the applicable data by calling its autocompletion
- * instructions, whether it is the command's
- * autocompletion or one of its options.
- *
- * @param {Object} input
- * @param {Function} cb
- * @return {Array}
- * @api private
- */
-
-function getMatchData(input, cb) {
-  var string = input.context;
-  var cmd = input.match;
-  var midOption = String(string).trim().slice(0, 1) === '-';
-  var afterOption = input.option !== undefined;
-  if (midOption === true) {
-    var results = [];
-    for (var i = 0; i < cmd.options.length; ++i) {
-      var long = cmd.options[i].long;
-      var short = cmd.options[i].short;
-      if (!long && short) {
-        results.push(short);
-      } else if (long) {
-        results.push(long);
-      }
-    }
-    cb(results);
-    return;
-  }
-
-  function handleDataFormat(str, config, callback) {
-    var data = [];
-    if (_.isArray(config)) {
-      data = config;
-    } else if (_.isFunction(config)) {
-      var cbk = config.length < 2 ? function () {} : function (res) {
-        callback(res || []);
-      };
-      var res = config(str, cbk);
-      if (res && _.isFunction(res.then)) {
-        res.then(function (resp) {
-          callback(resp);
-        }).catch(function (err) {
-          callback(err);
-        });
-      } else if (config.length < 2) {
-        callback(res);
-      }
-      return;
-    }
-    callback(data);
-    return;
-  }
-
-  if (afterOption === true) {
-    var opt = strip(input.option).trim();
-    var shortMatch = _.find(cmd.options, { short: opt });
-    var longMatch = _.find(cmd.options, { long: opt });
-    var match = longMatch || shortMatch;
-    if (match) {
-      var config = match.autocomplete;
-      handleDataFormat(string, config, cb);
-      return;
-    }
-  }
-
-  var conf = cmd._autocomplete;
-  conf = conf && conf.data ? conf.data : conf;
-  handleDataFormat(string, conf, cb);
-  return;
-}
-
-module.exports = autocomplete;
\ No newline at end of file
diff --git a/dist/command-instance.js b/dist/command-instance.js
deleted file mode 100755
index 863ab53a..00000000
--- a/dist/command-instance.js
+++ /dev/null
@@ -1,122 +0,0 @@
-'use strict';
-
-/**
- * Module dependencies.
- */
-
-var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
-
-function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
-
-var util = require('./util');
-var _ = require('lodash');
-
-var CommandInstance = function () {
-
-  /**
-   * Initialize a new `CommandInstance` instance.
-   *
-   * @param {Object} params
-   * @return {CommandInstance}
-   * @api public
-   */
-
-  function CommandInstance() {
-    var _ref = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {},
-        command = _ref.command,
-        commandObject = _ref.commandObject,
-        args = _ref.args,
-        commandWrapper = _ref.commandWrapper,
-        callback = _ref.callback,
-        downstream = _ref.downstream;
-
-    _classCallCheck(this, CommandInstance);
-
-    this.command = command;
-    this.commandObject = commandObject;
-    this.args = args;
-    this.commandWrapper = commandWrapper;
-    this.session = commandWrapper.session;
-    this.parent = this.session.parent;
-    this.callback = callback;
-    this.downstream = downstream;
-  }
-
-  /**
-   * Cancel running command.
-   */
-
-  _createClass(CommandInstance, [{
-    key: 'cancel',
-    value: function cancel() {
-      this.session.emit('vorpal_command_cancel');
-    }
-
-    /**
-     * Route stdout either through a piped command, or the session's stdout.
-     */
-
-  }, {
-    key: 'log',
-    value: function log() {
-      var _this = this;
-
-      var args = util.fixArgsForApply(arguments);
-      if (this.downstream) {
-        var fn = this.downstream.commandObject._fn || function () {};
-        this.session.registerCommand();
-        this.downstream.args.stdin = args;
-        var onComplete = function onComplete(err) {
-          if (_this.session.isLocal() && err) {
-            _this.session.log(err.stack || err);
-            _this.session.parent.emit('client_command_error', { command: _this.downstream.command, error: err });
-          }
-          _this.session.completeCommand();
-        };
-
-        var validate = this.downstream.commandObject._validate;
-        if (_.isFunction(validate)) {
-          try {
-            validate.call(this.downstream, this.downstream.args);
-          } catch (e) {
-            // Log error without piping to downstream on validation error.
-            this.session.log(e.toString());
-            onComplete();
-            return;
-          }
-        }
-
-        var res = fn.call(this.downstream, this.downstream.args, onComplete);
-        if (res && _.isFunction(res.then)) {
-          res.then(onComplete, onComplete);
-        }
-      } else {
-        this.session.log.apply(this.session, args);
-      }
-    }
-  }, {
-    key: 'prompt',
-    value: function prompt(a, b, c) {
-      return this.session.prompt(a, b, c);
-    }
-  }, {
-    key: 'delimiter',
-    value: function delimiter(a, b, c) {
-      return this.session.delimiter(a, b, c);
-    }
-  }, {
-    key: 'help',
-    value: function help(a, b, c) {
-      return this.session.help(a, b, c);
-    }
-  }, {
-    key: 'match',
-    value: function match(a, b, c) {
-      return this.session.match(a, b, c);
-    }
-  }]);
-
-  return CommandInstance;
-}();
-
-module.exports = CommandInstance;
\ No newline at end of file
diff --git a/dist/command.js b/dist/command.js
deleted file mode 100755
index e0ba1392..00000000
--- a/dist/command.js
+++ /dev/null
@@ -1,577 +0,0 @@
-'use strict';
-
-/**
- * Module dependencies.
- */
-
-var EventEmitter = require('events').EventEmitter;
-var Option = require('./option');
-var VorpalUtil = require('./util');
-var _ = require('lodash');
-
-/**
- * Command prototype.
- */
-
-var command = Command.prototype;
-
-/**
- * Expose `Command`.
- */
-
-module.exports = exports = Command;
-
-/**
- * Initialize a new `Command` instance.
- *
- * @param {String} name
- * @param {Vorpal} parent
- * @return {Command}
- * @api public
- */
-
-function Command(name, parent) {
-  if (!(this instanceof Command)) {
-    return new Command();
-  }
-  this.commands = [];
-  this.options = [];
-  this._args = [];
-  this._aliases = [];
-  this._name = name;
-  this._relay = false;
-  this._hidden = false;
-  this._parent = parent;
-  this._mode = false;
-  this._catch = false;
-  this._help = undefined;
-  this._init = undefined;
-  this._after = undefined;
-  this._allowUnknownOptions = false;
-}
-
-/**
- * Registers an option for given command.
- *
- * @param {String} flags
- * @param {String} description
- * @param {Function} fn
- * @param {String} defaultValue
- * @return {Command}
- * @api public
- */
-
-command.option = function (flags, description, autocomplete) {
-  var self = this;
-  var option = new Option(flags, description, autocomplete);
-  var oname = option.name();
-  var name = _camelcase(oname);
-  var defaultValue;
-
-  // preassign default value only for --no-*, [optional], or <required>
-  if (option.bool === false || option.optional || option.required) {
-    // when --no-* we make sure default is true
-    if (option.bool === false) {
-      defaultValue = true;
-    }
-    // preassign only if we have a default
-    if (defaultValue !== undefined) {
-      self[name] = defaultValue;
-    }
-  }
-
-  // register the option
-  this.options.push(option);
-
-  // when it's passed assign the value
-  // and conditionally invoke the callback
-  this.on(oname, function (val) {
-    // unassigned or bool
-    if (typeof self[name] === 'boolean' || typeof self[name] === 'undefined') {
-      // if no value, bool true, and we have a default, then use it!
-      if (val === null) {
-        self[name] = option.bool ? defaultValue || true : false;
-      } else {
-        self[name] = val;
-      }
-    } else if (val !== null) {
-      // reassign
-      self[name] = val;
-    }
-  });
-
-  return this;
-};
-
-/**
- * Defines an action for a given command.
- *
- * @param {Function} fn
- * @return {Command}
- * @api public
- */
-
-command.action = function (fn) {
-  var self = this;
-  self._fn = fn;
-  return this;
-};
-
-/**
- * Let's you compose other funtions to extend the command.
- *
- * @param {Function} fn
- * @return {Command}
- * @api public
- */
-
-command.use = function (fn) {
-  return fn(this);
-};
-
-/**
- * Defines a function to validate arguments
- * before action is performed. Arguments
- * are valid if no errors are thrown from
- * the function.
- *
- * @param fn
- * @returns {Command}
- * @api public
- */
-command.validate = function (fn) {
-  var self = this;
-  self._validate = fn;
-  return this;
-};
-
-/**
- * Defines a function to be called when the
- * command is canceled.
- *
- * @param fn
- * @returns {Command}
- * @api public
- */
-command.cancel = function (fn) {
-  this._cancel = fn;
-  return this;
-};
-
-/**
- * Defines a method to be called when
- * the command set has completed.
- *
- * @param {Function} fn
- * @return {Command}
- * @api public
- */
-
-command.done = function (fn) {
-  this._done = fn;
-  return this;
-};
-
-/**
- * Defines tabbed auto-completion
- * for the given command. Favored over
- * deprecated command.autocompletion.
- *
- * @param {Function} fn
- * @return {Command}
- * @api public
- */
-
-command.autocomplete = function (obj) {
-  this._autocomplete = obj;
-  return this;
-};
-
-/**
- * Defines tabbed auto-completion rules
- * for the given command.
- *
- * @param {Function} fn
- * @return {Command}
- * @api public
- */
-
-command.autocompletion = function (param) {
-  this._parent._useDeprecatedAutocompletion = true;
-  if (!_.isFunction(param) && !_.isObject(param)) {
-    throw new Error('An invalid object type was passed into the first parameter of command.autocompletion: function expected.');
-  }
-
-  this._autocompletion = param;
-  return this;
-};
-
-/**
- * Defines an init action for a mode command.
- *
- * @param {Function} fn
- * @return {Command}
- * @api public
- */
-
-command.init = function (fn) {
-  var self = this;
-  if (self._mode !== true) {
-    throw Error('Cannot call init from a non-mode action.');
-  }
-  self._init = fn;
-  return this;
-};
-
-/**
- * Defines a prompt delimiter for a
- * mode once entered.
- *
- * @param {String} delimiter
- * @return {Command}
- * @api public
- */
-
-command.delimiter = function (delimiter) {
-  this._delimiter = delimiter;
-  return this;
-};
-
-/**
- * Sets args for static typing of options
- * using minimist.
- *
- * @param {Object} types
- * @return {Command}
- * @api public
- */
-
-command.types = function (types) {
-  var supported = ['string', 'boolean'];
-  for (var item in types) {
-    if (supported.indexOf(item) === -1) {
-      throw new Error('An invalid type was passed into command.types(): ' + item);
-    }
-    types[item] = !_.isArray(types[item]) ? [types[item]] : types[item];
-  }
-  this._types = types;
-  return this;
-};
-
-/**
- * Defines an alias for a given command.
- *
- * @param {String} alias
- * @return {Command}
- * @api public
- */
-
-command.alias = function () {
-  var self = this;
-  for (var i = 0; i < arguments.length; ++i) {
-    var alias = arguments[i];
-    if (_.isArray(alias)) {
-      for (var j = 0; j < alias.length; ++j) {
-        this.alias(alias[j]);
-      }
-      return this;
-    }
-    this._parent.commands.forEach(function (cmd) {
-      if (!_.isEmpty(cmd._aliases)) {
-        if (_.includes(cmd._aliases, alias)) {
-          var msg = 'Duplicate alias "' + alias + '" for command "' + self._name + '" detected. Was first reserved by command "' + cmd._name + '".';
-          throw new Error(msg);
-        }
-      }
-    });
-    this._aliases.push(alias);
-  }
-  return this;
-};
-
-/**
- * Defines description for given command.
- *
- * @param {String} str
- * @return {Command}
- * @api public
- */
-
-command.description = function (str) {
-  if (arguments.length === 0) {
-    return this._description;
-  }
-  this._description = str;
-  return this;
-};
-
-/**
- * Removes self from Vorpal instance.
- *
- * @return {Command}
- * @api public
- */
-
-command.remove = function () {
-  var self = this;
-  this._parent.commands = _.reject(this._parent.commands, function (command) {
-    if (command._name === self._name) {
-      return true;
-    }
-  });
-  return this;
-};
-
-/**
- * Returns the commands arguments as string.
- *
- * @param {String} desc
- * @return {String}
- * @api public
- */
-
-command.arguments = function (desc) {
-  return this._parseExpectedArgs(desc.split(/ +/));
-};
-
-/**
- * Returns the help info for given command.
- *
- * @return {String}
- * @api public
- */
-
-command.helpInformation = function () {
-  var desc = [];
-  var cmdName = this._name;
-  var alias = '';
-
-  if (this._description) {
-    desc = ['  ' + this._description, ''];
-  }
-
-  if (this._aliases.length > 0) {
-    alias = '  Alias: ' + this._aliases.join(' | ') + '\n';
-  }
-  var usage = ['', '  Usage: ' + cmdName + ' ' + this.usage(), ''];
-
-  var cmds = [];
-
-  var help = String(this.optionHelp().replace(/^/gm, '    '));
-  var options = ['  Options:', '', help, ''];
-
-  var res = usage.concat(cmds).concat(alias).concat(desc).concat(options).join('\n');
-
-  res = res.replace(/\n\n\n/g, '\n\n');
-
-  return res;
-};
-
-/**
- * Doesn't show command in the help menu.
- *
- * @return {Command}
- * @api public
- */
-
-command.hidden = function () {
-  this._hidden = true;
-  return this;
-};
-
-/**
- * Allows undeclared options to be passed in with the command.
- *
- * @param {Boolean} [allowUnknownOptions=true]
- * @return {Command}
- * @api public
- */
-
-command.allowUnknownOptions = function () {
-  var allowUnknownOptions = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : true;
-
-  allowUnknownOptions = allowUnknownOptions === "false" ? false : allowUnknownOptions;
-
-  this._allowUnknownOptions = !!allowUnknownOptions;
-  return this;
-};
-
-/**
- * Returns the command usage string for help.
- *
- * @param {String} str
- * @return {String}
- * @api public
- */
-
-command.usage = function (str) {
-  var args = this._args.map(function (arg) {
-    return VorpalUtil.humanReadableArgName(arg);
-  });
-
-  var usage = '[options]' + (this.commands.length ? ' [command]' : '') + (this._args.length ? ' ' + args.join(' ') : '');
-
-  if (arguments.length === 0) {
-    return this._usage || usage;
-  }
-
-  this._usage = str;
-
-  return this;
-};
-
-/**
- * Returns the help string for the command's options.
- *
- * @return {String}
- * @api public
- */
-
-command.optionHelp = function () {
-  var width = this._largestOptionLength();
-
-  // Prepend the help information
-  return [VorpalUtil.pad('--help', width) + '  output usage information'].concat(this.options.map(function (option) {
-    return VorpalUtil.pad(option.flags, width) + '  ' + option.description;
-  })).join('\n');
-};
-
-/**
- * Returns the length of the longest option.
- *
- * @return {Integer}
- * @api private
- */
-
-command._largestOptionLength = function () {
-  return this.options.reduce(function (max, option) {
-    return Math.max(max, option.flags.length);
-  }, 0);
-};
-
-/**
- * Adds a custom handling for the --help flag.
- *
- * @param {Function} fn
- * @return {Command}
- * @api public
- */
-
-command.help = function (fn) {
-  if (_.isFunction(fn)) {
-    this._help = fn;
-  }
-  return this;
-};
-
-/**
- * Edits the raw command string before it
- * is executed.
- *
- * @param {String} str
- * @return {String} str
- * @api public
- */
-
-command.parse = function (fn) {
-  if (_.isFunction(fn)) {
-    this._parse = fn;
-  }
-  return this;
-};
-
-/**
- * Adds a command to be executed after command completion.
- *
- * @param {Function} fn
- * @return {Command}
- * @api public
- */
-
-command.after = function (fn) {
-  if (_.isFunction(fn)) {
-    this._after = fn;
-  }
-  return this;
-};
-
-/**
- * Parses and returns expected command arguments.
- *
- * @param {String} args
- * @return {Array}
- * @api private
- */
-
-command._parseExpectedArgs = function (args) {
-  if (!args.length) {
-    return;
-  }
-  var self = this;
-  args.forEach(function (arg) {
-    var argDetails = {
-      required: false,
-      name: '',
-      variadic: false
-    };
-
-    switch (arg[0]) {
-      case '<':
-        argDetails.required = true;
-        argDetails.name = arg.slice(1, -1);
-        break;
-      case '[':
-        argDetails.name = arg.slice(1, -1);
-        break;
-      default:
-        break;
-    }
-
-    if (argDetails.name.length > 3 && argDetails.name.slice(-3) === '...') {
-      argDetails.variadic = true;
-      argDetails.name = argDetails.name.slice(0, -3);
-    }
-    if (argDetails.name) {
-      self._args.push(argDetails);
-    }
-  });
-
-  // If the user entered args in a weird order,
-  // properly sequence them.
-  if (self._args.length > 1) {
-    self._args = self._args.sort(function (argu1, argu2) {
-      if (argu1.required && !argu2.required) {
-        return -1;
-      } else if (argu2.required && !argu1.required) {
-        return 1;
-      } else if (argu1.variadic && !argu2.variadic) {
-        return 1;
-      } else if (argu2.variadic && !argu1.variadic) {
-        return -1;
-      }
-      return 0;
-    });
-  }
-
-  return;
-};
-
-/**
- * Converts string to camel case.
- *
- * @param {String} flag
- * @return {String}
- * @api private
- */
-
-function _camelcase(flag) {
-  return flag.split('-').reduce(function (str, word) {
-    return str + word[0].toUpperCase() + word.slice(1);
-  });
-}
-
-/**
- * Make command an EventEmitter.
- */
-
-command.__proto__ = EventEmitter.prototype;
\ No newline at end of file
diff --git a/dist/history.js b/dist/history.js
deleted file mode 100755
index a52d1e18..00000000
--- a/dist/history.js
+++ /dev/null
@@ -1,188 +0,0 @@
-'use strict';
-
-var _ = require('lodash');
-var LocalStorage = require('node-localstorage').LocalStorage;
-var path = require('path');
-var os = require('os');
-
-// Number of command histories kept in persistent storage
-var HISTORY_SIZE = 500;
-
-var temp = path.normalize(path.join(os.tmpdir(), '/.local_storage'));
-var DEFAULT_STORAGE_PATH = temp;
-
-var History = function History() {
-  this._storageKey = undefined;
-
-  // Prompt Command History
-  // Histctr moves based on number of times 'up' (+= ctr)
-  //  or 'down' (-= ctr) was pressed in traversing
-  // command history.
-  this._hist = [];
-  this._histCtr = 0;
-
-  // When in a 'mode', we reset the
-  // history and store it in a cache until
-  // exiting the 'mode', at which point we
-  // resume the original history.
-  this._histCache = [];
-  this._histCtrCache = 0;
-};
-
-/**
- * Initialize the history with local storage data
- * Called from setId when history id is set
- */
-
-History.prototype._init = function () {
-  if (!this._storageKey) {
-    return;
-  }
-
-  // Load history from local storage
-  var persistedHistory = JSON.parse(this._localStorage.getItem(this._storageKey));
-  if (_.isArray(persistedHistory)) {
-    Array.prototype.push.apply(this._hist, persistedHistory);
-  }
-};
-
-/**
- * Set id for this history instance.
- * Calls init internally to initialize
- * the history with the id.
- */
-
-History.prototype.setId = function (id) {
-  // Initialize a localStorage instance with default
-  // path if it is not initialized
-  if (!this._localStorage) {
-    this._localStorage = new LocalStorage(DEFAULT_STORAGE_PATH);
-  }
-  this._storageKey = 'cmd_history_' + id;
-  this._init();
-};
-
-/**
- * Initialize a local storage instance with
- * the path if not already initialized.
- *
- * @param path
- */
-
-History.prototype.setStoragePath = function (path) {
-  if (!this._localStorage) {
-    this._localStorage = new LocalStorage(path);
-  }
-};
-
-/**
- * Get previous history. Called when up is pressed.
- *
- * @return {String}
- */
-
-History.prototype.getPreviousHistory = function () {
-  this._histCtr++;
-  this._histCtr = this._histCtr > this._hist.length ? this._hist.length : this._histCtr;
-  return this._hist[this._hist.length - this._histCtr];
-};
-
-/**
- * Get next history. Called when down is pressed.
- *
- * @return {String}
- */
-
-History.prototype.getNextHistory = function () {
-  this._histCtr--;
-
-  // Return empty prompt if the we dont have any history to show
-  if (this._histCtr < 1) {
-    this._histCtr = 0;
-    return '';
-  }
-
-  return this._hist[this._hist.length - this._histCtr];
-};
-
-/**
- * Peek into history, without changing state
- *
- * @return {String}
- */
-
-History.prototype.peek = function (depth) {
-  depth = depth || 0;
-  return this._hist[this._hist.length - 1 - depth];
-};
-
-/**
- * A new command was submitted. Called when enter is pressed and the prompt is not empty.
- *
- * @param cmd
- */
-
-History.prototype.newCommand = function (cmd) {
-  // Always reset history when new command is executed.
-  this._histCtr = 0;
-
-  // Don't store command in history if it's a duplicate.
-  if (this._hist[this._hist.length - 1] === cmd) {
-    return;
-  }
-
-  // Push into history.
-  this._hist.push(cmd);
-
-  // Only persist history when not in mode
-  if (this._storageKey && !this._inMode) {
-    var persistedHistory = this._hist;
-    var historyLen = this._hist.length;
-    if (historyLen > HISTORY_SIZE) {
-      persistedHistory = this._hist.slice(historyLen - HISTORY_SIZE - 1, historyLen - 1);
-    }
-
-    // Add to local storage
-    this._localStorage.setItem(this._storageKey, JSON.stringify(persistedHistory));
-  }
-};
-
-/**
- * Called when entering a mode
- */
-
-History.prototype.enterMode = function () {
-  // Reassign the command history to a
-  // cache, replacing it with a blank
-  // history for the mode.
-  this._histCache = _.clone(this._hist);
-  this._histCtrCache = parseFloat(this._histCtr);
-  this._hist = [];
-  this._histCtr = 0;
-  this._inMode = true;
-};
-
-/**
- * Called when exiting a mode
- */
-
-History.prototype.exitMode = function () {
-  this._hist = this._histCache;
-  this._histCtr = this._histCtrCache;
-  this._histCache = [];
-  this._histCtrCache = 0;
-  this._inMode = false;
-};
-
-/**
- * Clears the command history
- * (Currently only used in unit test)
- */
-
-History.prototype.clear = function () {
-  if (this._storageKey) {
-    this._localStorage.removeItem(this._storageKey);
-  }
-};
-
-module.exports = History;
\ No newline at end of file
diff --git a/dist/intercept.js b/dist/intercept.js
deleted file mode 100755
index 6c153ff3..00000000
--- a/dist/intercept.js
+++ /dev/null
@@ -1,51 +0,0 @@
-'use strict';
-
-/**
- * Module dependencies.
- */
-
-var _ = require('lodash');
-
-/**
- * Intercepts stdout, passes thru callback
- * also pass console.error thru stdout so it goes to callback too
- * (stdout.write and stderr.write are both refs to the same stream.write function)
- * returns an unhook() function, call when done intercepting
- *
- * @param {Function} callback
- * @return {Function}
- */
-
-module.exports = function (callback) {
-  var oldStdoutWrite = process.stdout.write;
-  var oldConsoleError = console.error;
-  process.stdout.write = function (write) {
-    return function (string) {
-      var args = _.toArray(arguments);
-      args[0] = interceptor(string);
-      write.apply(process.stdout, args);
-    };
-  }(process.stdout.write);
-
-  console.error = function () {
-    return function () {
-      var args = _.toArray(arguments);
-      args.unshift('\x1b[31m[ERROR]\x1b[0m');
-      console.log.apply(console.log, args);
-    };
-  }(console.error);
-
-  function interceptor(string) {
-    // only intercept the string
-    var result = callback(string);
-    if (typeof result === 'string') {
-      string = result.replace(/\n$/, '') + (result && /\n$/.test(string) ? '\n' : '');
-    }
-    return string;
-  }
-  // puts back to original
-  return function unhook() {
-    process.stdout.write = oldStdoutWrite;
-    console.error = oldConsoleError;
-  };
-};
\ No newline at end of file
diff --git a/dist/local-storage.js b/dist/local-storage.js
deleted file mode 100755
index f5241363..00000000
--- a/dist/local-storage.js
+++ /dev/null
@@ -1,37 +0,0 @@
-'use strict';
-
-var LocalStorageO = require('node-localstorage').LocalStorage;
-var path = require('path');
-var os = require('os');
-var temp = path.normalize(path.join(os.tmpdir(), '/.local_storage_'));
-var DEFAULT_STORAGE_PATH = temp;
-
-var LocalStorage = {
-  setId: function setId(id) {
-    if (id === undefined) {
-      throw new Error('vorpal.localStorage() requires a unique key to be passed in.');
-    }
-    if (!this._localStorage) {
-      this._localStorage = new LocalStorageO(DEFAULT_STORAGE_PATH + id);
-    }
-  },
-  validate: function validate() {
-    if (this._localStorage === undefined) {
-      throw new Error('Vorpal.localStorage() was not initialized before writing data.');
-    }
-  },
-  getItem: function getItem(key, value) {
-    this.validate();
-    return this._localStorage.getItem(key, value);
-  },
-  setItem: function setItem(key, value) {
-    this.validate();
-    return this._localStorage.setItem(key, value);
-  },
-  removeItem: function removeItem(key) {
-    this.validate();
-    return this._localStorage.removeItem(key);
-  }
-};
-
-module.exports = LocalStorage;
\ No newline at end of file
diff --git a/dist/logger.js b/dist/logger.js
deleted file mode 100755
index 6c9c83c5..00000000
--- a/dist/logger.js
+++ /dev/null
@@ -1,138 +0,0 @@
-'use strict';
-
-/**
- * Module dependencies.
- */
-
-var _ = require('lodash');
-var util = require('./util');
-var ut = require('util');
-
-/**
- * Initialize a new `Logger` instance.
- *
- * @return {Logger}
- * @api public
- */
-
-function viewed(str) {
-  var re = /\u001b\[\d+m/gm;
-  return String(str).replace(re, '');
-}
-
-function trimTo(str, amt) {
-  var raw = '';
-  var visual = viewed(str).slice(0, amt);
-  var result = '';
-  for (var i = 0; i < str.length; ++i) {
-    raw += str[i];
-    if (viewed(raw) === visual) {
-      result = raw;break;
-    }
-  }
-
-  if (result.length < amt - 10) {
-    return result;
-  }
-
-  var newResult = result;var found = false;
-  for (var j = result.length; j > 0; --j) {
-    if (result[j] === ' ') {
-      found = true;
-      break;
-    } else {
-      newResult = newResult.slice(0, newResult.length - 1);
-    }
-  }
-
-  if (found === true) {
-    return newResult;
-  }
-
-  return result;
-}
-
-function Logger(cons) {
-  var logger = cons || console;
-  log = function log() {
-    logger.log.apply(logger, arguments);
-  };
-
-  log.cols = function () {
-    var width = process.stdout.columns;
-    var pads = 0;
-    var padsWidth = 0;
-    var cols = 0;
-    var colsWidth = 0;
-    var input = arguments;
-
-    for (var h = 0; h < arguments.length; ++h) {
-      if (typeof arguments[h] === 'number') {
-        padsWidth += arguments[h];
-        pads++;
-      }
-      if (_.isArray(arguments[h]) && typeof arguments[h][0] === 'number') {
-        padsWidth += arguments[h][0];
-        pads++;
-      }
-    }
-
-    cols = arguments.length - pads;
-    colsWidth = Math.floor((width - padsWidth) / cols);
-
-    var lines = [];
-
-    var go = function go() {
-      var str = '';
-      var done = true;
-      for (var i = 0; i < input.length; ++i) {
-        if (typeof input[i] === 'number') {
-          str += util.pad('', input[i], ' ');
-        } else if (_.isArray(input[i]) && typeof input[i][0] === 'number') {
-          str += util.pad('', input[i][0], input[i][1]);
-        } else {
-          var chosenWidth = colsWidth + 0;
-          var trimmed = trimTo(input[i], colsWidth);
-          var trimmedLength = trimmed.length;
-          var re = /\\u001b\[\d+m/gm;
-          var matches = ut.inspect(trimmed).match(re);
-          var color = '';
-          // Ugh. We're chopping a line, so we have to look for unfinished
-          // color assignments and throw them on the next line.
-          if (matches && matches[matches.length - 1] !== '\\u001b[39m') {
-            trimmed += '\x1B[39m';
-            var number = String(matches[matches.length - 1]).slice(7, 9);
-            color = '\x1B[' + number + 'm';
-          }
-          input[i] = color + String(input[i].slice(trimmedLength, input[i].length)).trim();
-          str += util.pad(String(trimmed).trim(), chosenWidth, ' ');
-          if (viewed(input[i]).trim() !== '') {
-            done = false;
-          }
-        }
-      }
-      lines.push(str);
-      if (!done) {
-        go();
-      }
-    };
-    go();
-    for (var i = 0; i < lines.length; ++i) {
-      logger.log(lines[i]);
-    }
-    return this;
-  };
-
-  log.br = function () {
-    logger.log(' ');
-    return this;
-  };
-
-  return this.log;
-}
-
-/**
- * Expose `logger`.
- */
-
-module.exports = exports = Logger;
\ No newline at end of file
diff --git a/dist/option.js b/dist/option.js
deleted file mode 100755
index d801c6b5..00000000
--- a/dist/option.js
+++ /dev/null
@@ -1,90 +0,0 @@
-'use strict';
-
-var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
-
-function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
-
-var Option = function () {
-
-  /**
-   * Initialize a new `Option` instance.
-   *
-   * @param {String} flags
-   * @param {String} description
-   * @param {Autocomplete} autocomplete
-   * @return {Option}
-   * @api public
-   */
-
-  function Option(flags, description, autocomplete) {
-    _classCallCheck(this, Option);
-
-    this.flags = flags;
-    this.required = ~flags.indexOf('<');
-    this.optional = ~flags.indexOf('[');
-    this.bool = !~flags.indexOf('-no-');
-    this.autocomplete = autocomplete;
-    flags = flags.split(/[ ,|]+/);
-    if (flags.length > 1 && !/^[[<]/.test(flags[1])) {
-      this.assignFlag(flags.shift());
-    }
-    this.assignFlag(flags.shift());
-    this.description = description || '';
-  }
-
-  /**
-   * Return option name.
-   *
-   * @return {String}
-   * @api private
-   */
-
-  _createClass(Option, [{
-    key: 'name',
-    value: function name() {
-      if (this.long !== undefined) {
-        return this.long.replace('--', '').replace('no-', '');
-      }
-      return this.short.replace('-', '');
-    }
-
-    /**
-     * Check if `arg` matches the short or long flag.
-     *
-     * @param {String} arg
-     * @return {Boolean}
-     * @api private
-     */
-
-  }, {
-    key: 'is',
-    value: function is(arg) {
-      return arg === this.short || arg === this.long;
-    }
-
-    /**
-     * Assigned flag to either long or short.
-     *
-     * @param {String} flag
-     * @api private
-     */
-
-  }, {
-    key: 'assignFlag',
-    value: function assignFlag(flag) {
-      if (flag.startsWith('--')) {
-        this.long = flag;
-      } else {
-        this.short = flag;
-      }
-    }
-  }]);
-
-  return Option;
-}();
-
-/**
- * Expose `Option`.
- */
-
-module.exports = exports = Option;
\ No newline at end of file
diff --git a/dist/session.js b/dist/session.js
deleted file mode 100755
index 68e14652..00000000
--- a/dist/session.js
+++ /dev/null
@@ -1,559 +0,0 @@
-'use strict';
-
-/**
- * Module dependencies.
- */
-
-var EventEmitter = require('events').EventEmitter;
-var os = require('os');
-var _ = require('lodash');
-var util = require('./util');
-var autocomplete = require('./autocomplete');
-var CommandInstance = require('./command-instance');
-
-/**
- * Initialize a new `Session` instance.
- *
- * @param {String} name
- * @return {Session}
- * @api public
- */
-
-function Session(options) {
-  options = options || {};
-  this.id = options.id || this._guid();
-  this.parent = options.parent || undefined;
-  this.authenticating = options.authenticating || false;
-  this.authenticated = options.authenticated || undefined;
-  this.user = options.user || 'guest';
-  this.host = options.host;
-  this.address = options.address || undefined;
-  this._isLocal = options.local || undefined;
-  this._delimiter = options.delimiter || String(os.hostname()).split('.')[0] + '~$';
-  this._modeDelimiter = undefined;
-
-  // Keeps history of how many times in a row `tab` was
-  // pressed on the keyboard.
-  this._tabCtr = 0;
-
-  this.cmdHistory = this.parent.cmdHistory;
-
-  // Special command mode vorpal is in at the moment,
-  // such as REPL. See mode documentation.
-  this._mode = undefined;
-
-  return this;
-}
-
-/**
- * Extend Session prototype as an event emitter.
- */
-
-Session.prototype = Object.create(EventEmitter.prototype);
-
-/**
- * Session prototype.
- */
-
-var session = Session.prototype;
-
-/**
- * Expose `Session`.
- */
-
-module.exports = exports = Session;
-
-/**
- * Pipes logging data through any piped
- * commands, and then sends it to ._log for
- * actual logging.
- *
- * @param {String} [... arguments]
- * @return {Session}
- * @api public
- */
-
-session.log = function () {
-  var args = util.fixArgsForApply(arguments);
-  return this._log.apply(this, args);
-};
-
-/**
- * Routes logging for a given session.
- * is on a local TTY, or remote.
- *
- * @param {String} [... arguments]
- * @return {Session}
- * @api public
- */
-
-session._log = function () {
-  var self = this;
-  if (this.isLocal()) {
-    this.parent.ui.log.apply(this.parent.ui, arguments);
-  } else {
-    // If it's an error, expose the stack. Otherwise
-    // we get a helpful '{}'.
-    var args = [];
-    for (var i = 0; i < arguments.length; ++i) {
-      var str = arguments[i];
-      str = str && str.stack ? 'Error: ' + str.message : str;
-      args.push(str);
-    }
-    self.parent._send('vantage-ssn-stdout-downstream', 'downstream', { sessionId: self.id, value: args });
-  }
-  return this;
-};
-
-/**
- * Returns whether given session
- * is on a local TTY, or remote.
- *
- * @return {Boolean}
- * @api public
- */
-
-session.isLocal = function () {
-  return this._isLocal;
-};
-
-/**
- * Maps to vorpal.prompt for a session
- * context.
- *
- * @param {Object} options
- * @param {Function} cb
- * @api public
- */
-
-session.prompt = function (options, cb) {
-  options = options || {};
-  options.sessionId = this.id;
-  return this.parent.prompt(options, cb);
-};
-
-/**
- * Gets the full (normal + mode) delimiter
- * for this session.
- *
- * @return {String}
- * @api public
- */
-
-session.fullDelimiter = function () {
-  var result = this._delimiter + (this._modeDelimiter !== undefined ? this._modeDelimiter : '');
-  return result;
-};
-
-/**
- * Sets the delimiter for this session.
- *
- * @param {String} str
- * @return {Session}
- * @api public
- */
-
-session.delimiter = function (str) {
-  if (str === undefined) {
-    return this._delimiter;
-  }
-  this._delimiter = String(str).trim() + ' ';
-  if (this.isLocal()) {
-    this.parent.ui.refresh();
-  } else {
-    this.parent._send('vantage-delimiter-downstream', 'downstream', { value: str, sessionId: this.id });
-  }
-  return this;
-};
-
-/**
- * Sets the mode delimiter for this session.
- *
- * @param {String} str
- * @return {Session}
- * @api public
- */
-
-session.modeDelimiter = function (str) {
-  var self = this;
-  if (str === undefined) {
-    return this._modeDelimiter;
-  }
-  if (!this.isLocal()) {
-    self.parent._send('vantage-mode-delimiter-downstream', 'downstream', { value: str, sessionId: self.id });
-  } else {
-    if (str === false || str === 'false') {
-      this._modeDelimiter = undefined;
-    } else {
-      this._modeDelimiter = String(str).trim() + ' ';
-    }
-    this.parent.ui.refresh();
-  }
-  return this;
-};
-
-/**
- * Returns the result of a keypress
- * string, depending on the type.
- *
- * @param {String} key
- * @param {String} value
- * @return {Function}
- * @api private
- */
-
-session.getKeypressResult = function (key, value, cb) {
-  cb = cb || function () {};
-  var keyMatch = ['up', 'down', 'tab'].indexOf(key) > -1;
-  if (key !== 'tab') {
-    this._tabCtr = 0;
-  }
-  if (keyMatch) {
-    if (['up', 'down'].indexOf(key) > -1) {
-      cb(undefined, this.getHistory(key));
-    } else if (key === 'tab') {
-      // If the Vorpal user has any commands that use
-      // command.autocompletion, defer to the deprecated
-      // version of autocompletion. Otherwise, default
-      // to the new version.
-      var fn = this.parent._useDeprecatedAutocompletion ? 'getAutocompleteDeprecated' : 'getAutocomplete';
-      this[fn](value, function (err, data) {
-        cb(err, data);
-      });
-    }
-  } else {
-    this._histCtr = 0;
-  }
-};
-
-session.history = function (str) {
-  var exceptions = [];
-  if (str && exceptions.indexOf(String(str).toLowerCase()) === -1) {
-    this.cmdHistory.newCommand(str);
-  }
-};
-
-/**
- * New autocomplete.
- *
- * @param {String} str
- * @param {Function} cb
- * @api private
- */
-
-session.getAutocomplete = function (str, cb) {
-  return autocomplete.exec.call(this, str, cb);
-};
-
-/**
- * Deprecated autocomplete - being deleted
- * in Vorpal 2.0.
- *
- * @param {String} str
- * @param {Function} cb
- * @api private
- */
-
-session.getAutocompleteDeprecated = function (str, cb) {
-  cb = cb || function () {};
-
-  // Entire command string
-  var cursor = this.parent.ui._activePrompt.screen.rl.cursor;
-  var trimmed = String(str).trim();
-  var cut = String(trimmed).slice(0, cursor);
-  var remainder = String(trimmed).slice(cursor, trimmed.length).replace(/ +$/, '');
-  trimmed = cut;
-
-  // Set "trimmed" to command string after pipe
-  // Set "pre" to command string, pipe, and a space
-  var pre = '';
-  var lastPipeIndex = trimmed.lastIndexOf('|');
-  if (lastPipeIndex !== -1) {
-    pre = trimmed.substr(0, lastPipeIndex + 1) + ' ';
-    trimmed = trimmed.substr(lastPipeIndex + 1).trim();
-  }
-
-  // Complete command
-  var names = _.map(this.parent.commands, '_name');
-  names = names.concat.apply(names, _.map(this.parent.commands, '_aliases'));
-  var result = this._autocomplete(trimmed, names);
-  if (result && trimmed.length < String(result).trim().length) {
-    cb(undefined, pre + result + remainder);
-    return;
-  }
-
-  // Find custom autocompletion
-  var match;
-  var extra;
-
-  names.forEach(function (name) {
-    if (trimmed.substr(0, name.length) === name && String(name).trim() !== '') {
-      match = name;
-      extra = trimmed.substr(name.length).trim();
-    }
-  });
-
-  var command = match ? _.find(this.parent.commands, { _name: match }) : undefined;
-
-  if (!command) {
-    command = _.find(this.parent.commands, { _catch: true });
-    if (command) {
-      extra = trimmed;
-    }
-  }
-
-  if (command && _.isFunction(command._autocompletion)) {
-    this._tabCtr++;
-    command._autocompletion.call(this, extra, this._tabCtr, function (err, autocomplete) {
-      if (err) {
-        return cb(err);
-      }
-      if (_.isArray(autocomplete)) {
-        return cb(undefined, autocomplete);
-      } else if (autocomplete === undefined) {
-        return cb(undefined, undefined);
-      }
-      return cb(undefined, pre + autocomplete + remainder);
-    });
-  } else {
-    cb(undefined, undefined);
-  }
-};
-
-session._autocomplete = function (str, arr) {
-  return autocomplete.match.call(this, str, arr);
-};
-
-/**
- * Public facing autocomplete helper.
- *
- * @param {String} str
- * @param {Array} arr
- * @return {String}
- * @api public
- */
-
-session.help = function (command) {
-  this.log(this.parent._commandHelp(command || ''));
-};
-
-/**
- * Public facing autocomplete helper.
- *
- * @param {String} str
- * @param {Array} arr
- * @return {String}
- * @api public
- */
-
-session.match = function (str, arr) {
-  return this._autocomplete(str, arr);
-};
-
-/**
- * Gets a new command set ready.
- *
- * @return {session}
- * @api public
- */
-
-session.execCommandSet = function (wrapper, callback) {
-  var self = this;
-  var response = {};
-  var res;
-  var cbk = callback;
-  this._registeredCommands = 1;
-  this._completedCommands = 0;
-
-  // Create the command instance for the first
-  // command and hook it up to the pipe chain.
-  var commandInstance = new CommandInstance({
-    downstream: wrapper.pipes[0],
-    commandObject: wrapper.commandObject,
-    commandWrapper: wrapper
-  });
-
-  wrapper.commandInstance = commandInstance;
-
-  function sendDones(itm) {
-    if (itm.commandObject && itm.commandObject._done) {
-      itm.commandObject._done.call(itm);
-    }
-    if (itm.downstream) {
-      sendDones(itm.downstream);
-    }
-  }
-
-  // Called when command is cancelled
-  this.cancelCommands = function () {
-    var callCancel = function callCancel(commandInstance) {
-      if (_.isFunction(commandInstance.commandObject._cancel)) {
-        commandInstance.commandObject._cancel.call(commandInstance);
-      }
-
-      if (commandInstance.downstream) {
-        callCancel(commandInstance.downstream);
-      }
-    };
-
-    callCancel(wrapper.commandInstance);
-
-    // Check if there is a cancel method on the promise
-    if (res && _.isFunction(res.cancel)) {
-      res.cancel(wrapper.commandInstance);
-    }
-
-    self.removeListener('vorpal_command_cancel', self.cancelCommands);
-    self.cancelCommands = undefined;
-    self._commandSetCallback = undefined;
-    self._registeredCommands = 0;
-    self._completedCommands = 0;
-    self.parent.emit('client_command_cancelled', { command: wrapper.command });
-
-    cbk(wrapper);
-  };
-
-  this.on('vorpal_command_cancel', self.cancelCommands);
-
-  // Gracefully handles all instances of the command completing.
-  this._commandSetCallback = function () {
-    var err = response.error;
-    var data = response.data;
-    var argus = response.args;
-    if (self.isLocal() && err) {
-      var stack;
-      if (data && data.stack) {
-        stack = data.stack;
-      } else if (err && err.stack) {
-        stack = err.stack;
-      } else {
-        stack = err;
-      }
-      self.log(stack);
-      self.parent.emit('client_command_error', { command: wrapper.command, error: err });
-    } else if (self.isLocal()) {
-      self.parent.emit('client_command_executed', { command: wrapper.command });
-    }
-
-    self.removeListener('vorpal_command_cancel', self.cancelCommands);
-    self.cancelCommands = undefined;
-    cbk(wrapper, err, data, argus);
-    sendDones(commandInstance);
-  };
-
-  function onCompletion(wrapper, err, data, argus) {
-    response = {
-      error: err,
-      data: data,
-      args: argus
-    };
-    self.completeCommand();
-  }
-
-  var valid;
-  if (_.isFunction(wrapper.validate)) {
-    try {
-      valid = wrapper.validate.call(commandInstance, wrapper.args);
-    } catch (e) {
-      // Complete with error on validation error
-      onCompletion(wrapper, e);
-      return this;
-    }
-  }
-
-  if (valid !== true && valid !== undefined) {
-    onCompletion(wrapper, valid || null);
-    return this;
-  }
-
-  // Call the root command.
-  res = wrapper.fn.call(commandInstance, wrapper.args, function () {
-    var argus = util.fixArgsForApply(arguments);
-    onCompletion(wrapper, argus[0], argus[1], argus);
-  });
-
-  // If the command as declared by the user
-  // returns a promise, handle accordingly.
-  if (res && _.isFunction(res.then)) {
-    res.then(function (data) {
-      onCompletion(wrapper, undefined, data);
-    }).catch(function (err) {
-      onCompletion(wrapper, true, err);
-    });
-  }
-
-  return this;
-};
-
-/**
- * Adds on a command or sub-command in progress.
- * Session keeps tracked of commands,
- * and as soon as all commands have been
- * compelted, the session returns the entire
- * command set as complete.
- *
- * @return {session}
- * @api public
- */
-
-session.registerCommand = function () {
-  this._registeredCommands = this._registeredCommands || 0;
-  this._registeredCommands++;
-  return this;
-};
-
-/**
- * Marks a command or subcommand as having completed.
- * If all commands have completed, calls back
- * to the root command as being done.
- *
- * @return {session}
- * @api public
- */
-
-session.completeCommand = function () {
-  this._completedCommands++;
-  if (this._registeredCommands <= this._completedCommands) {
-    this._registeredCommands = 0;
-    this._completedCommands = 0;
-    if (this._commandSetCallback) {
-      this._commandSetCallback();
-    }
-    this._commandSetCallback = undefined;
-  }
-  return this;
-};
-
-/**
- * Returns the appropriate command history
- * string based on an 'Up' or 'Down' arrow
- * key pressed by the user.
- *
- * @param {String} direction
- * @return {String}
- * @api private
- */
-
-session.getHistory = function (direction) {
-  var history;
-  if (direction === 'up') {
-    history = this.cmdHistory.getPreviousHistory();
-  } else if (direction === 'down') {
-    history = this.cmdHistory.getNextHistory();
-  }
-  return history;
-};
-
-/**
- * Generates random GUID for Session ID.
- *
- * @return {GUID}
- * @api private
- */
-
-session._guid = function () {
-  function s4() {
-    return Math.floor((1 + Math.random()) * 0x10000).toString(16).substring(1);
-  }
-  return s4() + s4() + '-' + s4() + '-' + s4() + '-' + s4() + '-' + s4() + s4() + s4();
-};
\ No newline at end of file
diff --git a/dist/ui.js b/dist/ui.js
deleted file mode 100755
index c9d28ba4..00000000
--- a/dist/ui.js
+++ /dev/null
@@ -1,654 +0,0 @@
-'use strict';
-
-/**
- * Module dependencies.
- */
-
-var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
-
-function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
-
-function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }
-
-function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }
-
-var _ = require('lodash');
-var inquirer = require('inquirer');
-var EventEmitter = require('events').EventEmitter;
-var chalk = require('chalk');
-var util = require('./util');
-var logUpdate = require('log-update');
-
-var UI = function (_EventEmitter) {
-  _inherits(UI, _EventEmitter);
-
-  /**
-   * Sets intial variables and registers
-   * listeners. This is called once in a
-   * process thread regardless of how many
-   * instances of Vorpal have been generated.
-   *
-   * @api private
-   */
-
-  function UI() {
-    _classCallCheck(this, UI);
-
-    var _this = _possibleConstructorReturn(this, (UI.__proto__ || Object.getPrototypeOf(UI)).call(this));
-
-    var self = _this;
-
-    // Attached vorpal instance. The UI can
-    // only attach to one instance of Vorpal
-    // at a time, and directs all events to that
-    // instance.
-    _this.parent = undefined;
-
-    // Hook to reference active inquirer prompt.
-    _this._activePrompt = undefined;
-
-    // Fail-safe to ensure there is no double
-    // prompt in odd situations.
-    _this._midPrompt = false;
-
-    // Handle for inquirer's prompt.
-    _this.inquirer = inquirer;
-
-    // prompt history from inquirer
-    _this.inquirerStdout = [];
-
-    // Whether a prompt is currently in cancel mode.
-    _this._cancelled = false;
-
-    // Middleware for piping stdout through.
-    _this._pipeFn = undefined;
-
-    // Custom function on sigint event.
-    _this._sigintCalled = false;
-    _this._sigintCount = 0;
-    _this._sigint = function () {
-      if (_this._sigintCount > 1) {
-        _this.parent.emit('vorpal_exit');
-        process.exit(0);
-      } else {
-        var text = _this.input();
-        if (!_this.parent) {
-          // If Vorpal isn't shown, just exit.
-          process.exit(0);
-        } else if (_this.parent.session.cancelCommands) {
-          // There are commands running if
-          // cancelCommands function is available.
-          _this.imprint();
-          _this.submit('');
-          _this._sigintCalled = false;
-          _this._sigintCount = 0;
-          _this.parent.session.emit('vorpal_command_cancel');
-        } else if (String(text).trim() !== '') {
-          _this.imprint();
-          _this.submit('');
-          _this._sigintCalled = false;
-          _this._sigintCount = 0;
-        } else {
-          _this._sigintCalled = false;
-          _this.delimiter(' ');
-          _this.submit('');
-          _this.log('(^C again to quit)');
-        }
-      }
-    };
-
-    process.stdin.on('keypress', function (letter, key) {
-      key = key || {};
-      if (key.ctrl === true && key.shift === false && key.meta === false && ['c', 'C'].indexOf(key.name) > -1) {
-        _this._sigintCount++;
-        if (_this._sigint !== undefined && !_this._sigintCalled) {
-          _this._sigintCalled = true;
-          _this._sigint.call(self.parent);
-          _this._sigintCalled = false;
-        }
-      } else {
-        _this._sigintCalled = false;
-        _this._sigintCount = 0;
-      }
-    });
-
-    // Extend the render function to steal the active prompt object,
-    // as inquirer doesn't expose it and we need it.
-    var prompts = ['input', 'checkbox', 'confirm', 'expand', 'list', 'password', 'rawlist'];
-
-    var _loop = function _loop(key) {
-      var promptType = prompts[key];
-
-      // Add method to Inquirer to get type of prompt.
-      inquirer.prompt.prompts[promptType].prototype.getType = function () {
-        return promptType;
-      };
-
-      // Hook in to steal Inquirer's keypress.
-      inquirer.prompt.prompts[promptType].prototype.onKeypress = function (e) {
-        // Inquirer seems to have a bug with release v0.10.1
-        // (not 0.10.0 though) that triggers keypresses for
-        // the previous prompt in addition to the current one.
-        // So if the prompt is answered, shut it up.
-        if (this.status && this.status === 'answered') {
-          return;
-        }
-        self._activePrompt = this;
-        self.parent.emit('client_keypress', e);
-        self._keypressHandler(e, this);
-      };
-
-      // Add hook to render method.
-      var render = inquirer.prompt.prompts[promptType].prototype.render;
-      inquirer.prompt.prompts[promptType].prototype.render = function () {
-        self._activePrompt = this;
-        return render.apply(this, arguments);
-      };
-    };
-
-    for (var key in prompts) {
-      _loop(key);
-    }
-
-    // Sigint handling - make it more graceful.
-    var onSigInt = function onSigInt() {
-      if (_.isFunction(_this._sigint) && !_this._sigintCalled) {
-        _this._sigintCalled = true;
-        _this._sigint.call(_this.parent);
-      }
-    };
-    process.on('SIGINT', onSigInt);
-    process.on('SIGTERM', onSigInt);
-    return _this;
-  }
-
-  /**
-   * Hook for sigint event.
-   *
-   * @param {Object} options
-   * @param {Function} cb
-   * @api public
-   */
-
-  _createClass(UI, [{
-    key: 'sigint',
-    value: function sigint(fn) {
-      if (_.isFunction(fn)) {
-        this._sigint = fn;
-      } else {
-        throw new Error('vorpal.ui.sigint must be passed in a valid function.');
-      }
-      return this;
-    }
-
-    /**
-     * Creates an inquirer prompt on the TTY.
-     *
-     * @param {Object} options
-     * @param {Function} cb
-     * @api public
-     */
-
-  }, {
-    key: 'prompt',
-    value: function prompt(options, cb) {
-      var _this2 = this;
-
-      var prompt = void 0;
-      options = options || {};
-      if (!this.parent) {
-        return prompt;
-      }
-      if (options.delimiter) {
-        this.setDelimiter(options.delimiter);
-      }
-      if (options.message) {
-        this.setDelimiter(options.message);
-      }
-      if (this._midPrompt) {
-        console.log('Prompt called when mid prompt...');
-        throw new Error('UI Prompt called when already mid prompt.');
-      }
-      this._midPrompt = true;
-      try {
-        prompt = inquirer.prompt(options, function (result) {
-          _this2.inquirerStdout = [];
-          _this2._midPrompt = false;
-          if (_this2._cancel === true) {
-            _this2._cancel = false;
-          } else {
-            cb(result);
-          }
-        });
-
-        // Temporary hack. We need to pull the active
-        // prompt from inquirer as soon as possible,
-        // however we can't just assign it sync, as
-        // the prompt isn't ready yet.
-        // I am trying to get inquirer extended to
-        // fire an event instead.
-        setTimeout(function () {
-          // this._activePrompt = prompt._activePrompt;
-        }, 100);
-      } catch (e) {
-        console.log('Vorpal Prompt error:', e);
-      }
-      return prompt;
-    }
-
-    /**
-     * Returns a boolean as to whether user
-     * is mid another pr ompt.
-     *
-     * @return {Boolean}
-     * @api public
-     */
-
-  }, {
-    key: 'midPrompt',
-    value: function midPrompt() {
-      var mid = this._midPrompt === true && this.parent !== undefined;
-      return mid;
-    }
-  }, {
-    key: 'setDelimiter',
-    value: function setDelimiter(str) {
-      var self = this;
-      if (!this.parent) {
-        return;
-      }
-      str = String(str).trim() + ' ';
-      this._lastDelimiter = str;
-      inquirer.prompt.prompts.password.prototype.getQuestion = function () {
-        self._activePrompt = this;
-        return this.opt.message;
-      };
-      inquirer.prompt.prompts.input.prototype.getQuestion = function () {
-        self._activePrompt = this;
-        var message = this.opt.message;
-        if ((this.opt.default || this.opt.default === false) && this.status !== 'answered') {
-          message += chalk.dim('(' + this.opt.default + ') ');
-        }
-        self.inquirerStdout.push(message);
-        return message;
-      };
-    }
-
-    /**
-     * Event handler for keypresses - deals with command history
-     * and tabbed auto-completion.
-     *
-     * @param {Event} e
-     * @param {Prompt} prompt
-     * @api private
-     */
-
-  }, {
-    key: '_keypressHandler',
-    value: function _keypressHandler(e, prompt) {
-      // Remove tab characters from user input.
-      prompt.rl.line = prompt.rl.line.replace(/\t+/, '');
-
-      // Mask passwords.
-      var line = prompt.getType() !== 'password' ? prompt.rl.line : '*'.repeat(prompt.rl.line.length);
-
-      // Re-write render function.
-      var width = prompt.rl.line.length;
-      var newWidth = prompt.rl.line.length;
-      var diff = newWidth - width;
-      prompt.rl.cursor += diff;
-      var cursor = 0;
-      var message = prompt.getQuestion();
-      var addition = prompt.status === 'answered' ? chalk.cyan(prompt.answer) : line;
-      message += addition;
-      prompt.screen.render(message, { cursor: cursor });
-
-      var key = (e.key || {}).name;
-      var value = prompt ? String(line) : undefined;
-      this.emit('vorpal_ui_keypress', { key: key, value: value, e: e });
-    }
-
-    /**
-     * Pauses active prompt, returning
-     * the value of what had been typed so far.
-     *
-     * @return {String} val
-     * @api public
-     */
-
-  }, {
-    key: 'pause',
-    value: function pause() {
-      if (!this.parent) {
-        return false;
-      }
-      if (!this._activePrompt) {
-        return false;
-      }
-      if (!this._midPrompt) {
-        return false;
-      }
-      var val = this._lastDelimiter + this._activePrompt.rl.line;
-      this._midPrompt = false;
-      var rl = this._activePrompt.screen.rl;
-      var screen = this._activePrompt.screen;
-      rl.output.unmute();
-      screen.clean();
-      rl.output.write('');
-      return val;
-    }
-
-    /**
-     * Resumes active prompt, accepting
-     * a string, which will fill the prompt
-     * with that text and put the cursor at
-     * the end.
-     *
-     * @param {String} val
-     * @api public
-     */
-
-  }, {
-    key: 'resume',
-    value: function resume(val) {
-      if (!this.parent) {
-        return this;
-      }
-      val = val || '';
-      if (!this._activePrompt) {
-        return this;
-      }
-      if (this._midPrompt) {
-        return this;
-      }
-      var rl = this._activePrompt.screen.rl;
-      rl.output.write(val);
-      this._midPrompt = true;
-      return this;
-    }
-
-    /**
-     * Cancels the active prompt, essentially
-     * but cutting out of the inquirer loop.
-     *
-     * @api public
-     */
-
-  }, {
-    key: 'cancel',
-    value: function cancel() {
-      if (this.midPrompt()) {
-        this._cancel = true;
-        this.submit('');
-        this._midPrompt = false;
-      }
-      return this;
-    }
-
-    /**
-     * Attaches TTY prompt to a given Vorpal instance.
-     *
-     * @param {Vorpal} vorpal
-     * @return {UI}
-     * @api public
-     */
-
-  }, {
-    key: 'attach',
-    value: function attach(vorpal) {
-      this.parent = vorpal;
-      this.refresh();
-      this.parent._prompt();
-      return this;
-    }
-
-    /**
-     * Detaches UI from a given Vorpal instance.
-     *
-     * @param {Vorpal} vorpal
-     * @return {UI}
-     * @api public
-     */
-
-  }, {
-    key: 'detach',
-    value: function detach(vorpal) {
-      if (vorpal === this.parent) {
-        this.parent = undefined;
-      }
-      return this;
-    }
-
-    /**
-     * Receives and runs logging through
-     * a piped function is one is provided
-     * through ui.pipe(). Pauses any active
-     * prompts, logs the data and then if
-     * paused, resumes the prompt.
-     *
-     * @return {UI}
-     * @api public
-     */
-
-  }, {
-    key: 'log',
-    value: function log() {
-      var args = util.fixArgsForApply(arguments);
-      args = _.isFunction(this._pipeFn) ? this._pipeFn(args) : args;
-      if (args === '') {
-        return this;
-      }
-      args = util.fixArgsForApply(args);
-      if (this.midPrompt()) {
-        var data = this.pause();
-        console.log.apply(console.log, args);
-        if (typeof data !== 'undefined' && data !== false) {
-          this.resume(data);
-        } else {
-          console.log('Log got back \'false\' as data. This shouldn\'t happen.', data);
-        }
-      } else {
-        console.log.apply(console.log, args);
-      }
-      return this;
-    }
-
-    /**
-     * Submits a given prompt.
-     *
-     * @param {String} value
-     * @return {UI}
-     * @api public
-     */
-
-  }, {
-    key: 'submit',
-    value: function submit() {
-      if (this._activePrompt) {
-        // this._activePrompt.screen.onClose();
-        this._activePrompt.rl.emit('line');
-        // this._activePrompt.onEnd({isValid: true, value: value});
-        // to do - I don't know a good way to do this.
-      }
-      return this;
-    }
-
-    /**
-     * Does a literal, one-time write to the
-     * *current* prompt delimiter.
-     *
-     * @param {String} str
-     * @return {UI}
-     * @api public
-     */
-
-  }, {
-    key: 'delimiter',
-    value: function delimiter(str) {
-      if (!this._activePrompt) {
-        return this;
-      }
-      var prompt = this._activePrompt;
-      if (str === undefined) {
-        return prompt.opt.message;
-      }
-      prompt.opt.message = str;
-      this.refresh();
-      return this;
-    }
-
-    /**
-     * Re-writes the input of an Inquirer prompt.
-     * If no string is passed, it gets the current
-     * input.
-     *
-     * @param {String} str
-     * @return {String}
-     * @api public
-     */
-
-  }, {
-    key: 'input',
-    value: function input(str) {
-      if (!this._activePrompt) {
-        return undefined;
-      }
-      var prompt = this._activePrompt;
-      if (str === undefined) {
-        return prompt.rl.line;
-      }
-      var width = prompt.rl.line.length;
-      prompt.rl.line = str;
-      var newWidth = prompt.rl.line.length;
-      var diff = newWidth - width;
-      prompt.rl.cursor += diff;
-      var cursor = 0;
-      var message = prompt.getQuestion();
-      var addition = prompt.status === 'answered' ? chalk.cyan(prompt.answer) : prompt.rl.line;
-      message += addition;
-      prompt.screen.render(message, { cursor: cursor });
-      return this;
-    }
-
-    /**
-     * Logs the current delimiter and typed data.
-     *
-     * @return {UI}
-     * @api public
-     */
-
-  }, {
-    key: 'imprint',
-    value: function imprint() {
-      if (!this.parent) {
-        return this;
-      }
-      var val = this._activePrompt.rl.line;
-      var delimiter = this._lastDelimiter || this.delimiter() || '';
-      this.log(delimiter + val);
-      return this;
-    }
-
-    /**
-     * Redraws the inquirer prompt with a new string.
-     *
-     * @param {String} str
-     * @return {UI}
-     * @api private
-     */
-
-  }, {
-    key: 'refresh',
-    value: function refresh() {
-      if (!this.parent || !this._activePrompt) {
-        return this;
-      }
-      this._activePrompt.screen.clean();
-      this._activePrompt.render();
-      this._activePrompt.rl.output.write(this._activePrompt.rl.line);
-      return this;
-    }
-
-    /**
-     * Writes over existing logging.
-     *
-     * @param {String} str
-     * @return {UI}
-     * @api public
-     */
-
-  }, {
-    key: 'redraw',
-    value: function redraw(str) {
-      logUpdate(str);
-      return this;
-    }
-  }]);
-
-  return UI;
-}(EventEmitter);
-
-/**
- * Initialize singleton.
- */
-
-var ui = new UI();
-
-/**
- * Clears logging from `ui.redraw`
- * permanently.
- *
- * @return {UI}
- * @api public
- */
-
-ui.redraw.clear = function () {
-  logUpdate.clear();
-  return ui;
-};
-
-/**
- * Prints logging from `ui.redraw`
- * permanently.
- *
- * @return {UI}
- * @api public
- */
-
-ui.redraw.done = function () {
-  logUpdate.done();
-  ui.refresh();
-  return ui;
-};
-
-/**
- * Expose `ui`.
- *
- * Modifying global? WTF?!? Yes. It is evil.
- * However node.js prompts are also quite
- * evil in a way. Nothing prevents dual prompts
- * between applications in the same terminal,
- * and inquirer doesn't catch or deal with this, so
- * if you want to start two independent instances of
- * vorpal, you need to know that prompt listeners
- * have already been initiated, and that you can
- * only attach the tty to one vorpal instance
- * at a time.
- * When you fire inqurier twice, you get a double-prompt,
- * where every keypress fires twice and it's just a
- * total mess. So forgive me.
- */
-
-global.__vorpal = global.__vorpal || {};
-global.__vorpal.ui = global.__vorpal.ui || {
-  exists: false,
-  exports: undefined
-};
-
-if (!global.__vorpal.ui.exists) {
-  global.__vorpal.ui.exists = true;
-  global.__vorpal.ui.exports = ui;
-  module.exports = exports = global.__vorpal.ui.exports;
-} else {
-  module.exports = global.__vorpal.ui.exports;
-}
\ No newline at end of file
diff --git a/dist/util.js b/dist/util.js
deleted file mode 100755
index d527c9e6..00000000
--- a/dist/util.js
+++ /dev/null
@@ -1,464 +0,0 @@
-'use strict';
-
-/**
- * Module dependencies.
- */
-
-var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; };
-
-var _ = require('lodash');
-var minimist = require('minimist');
-var strip = require('strip-ansi');
-
-var util = {
-  /**
-   * Parses command arguments from multiple
-   * sources.
-   *
-   * @param {String} str
-   * @param {Object} opts
-   * @return {Array}
-   * @api private
-   */
-
-  parseArgs: function parseArgs(str, opts) {
-    var reg = /"(.*?)"|'(.*?)'|`(.*?)`|([^\s"]+)/gi;
-    var arr = [];
-    var match = void 0;
-    do {
-      match = reg.exec(str);
-      if (match !== null) {
-        arr.push(match[1] || match[2] || match[3] || match[4]);
-      }
-    } while (match !== null);
-
-    arr = minimist(arr, opts);
-    arr._ = arr._ || [];
-    return arr;
-  },
-
-  /**
-   * Prepares a command and all its parts for execution.
-   *
-   * @param {String} command
-   * @param {Array} commands
-   * @return {Object}
-   * @api public
-   */
-
-  parseCommand: function parseCommand(command, commands) {
-    var self = this;
-    var pipes = [];
-    var match = void 0;
-    var matchArgs = void 0;
-    var matchParts = void 0;
-
-    function parsePipes() {
-      // First, split the command by pipes naively.
-      // This will split command arguments in half when the argument contains a pipe character.
-      // For example, say "(Vorpal|vorpal)" will be split into ['say "(Vorpal', 'vorpal)'] which isn't good.
-      var naivePipes = String(command).trim().split('|');
-
-      // Contruct empty array to place correctly split commands into.
-      var newPipes = [];
-
-      // We will look for pipe characters within these quotes to rejoin together.
-      var quoteChars = ['"', '\'', '`'];
-
-      // This will expand to contain one boolean key for each type of quote.
-      // The value keyed by the quote is toggled off and on as quote type is opened and closed.
-      // Example { "`": true, "'": false } would mean that there is an open angle quote.
-      var quoteTracker = {};
-
-      // The current command piece before being rejoined with it's over half.
-      // Since it's not common for pipes to occur in commands, this is usually the entire command pipe.
-      var commandPart = '';
-
-      // Loop through each naive pipe.
-      for (var key in naivePipes) {
-        // It's possible/likely that this naive pipe is the whole pipe if it doesn't contain an unfinished quote.
-        var possiblePipe = naivePipes[key];
-        commandPart += possiblePipe;
-
-        // Loop through each individual character in the possible pipe tracking the opening and closing of quotes.
-        for (var i = 0; i < possiblePipe.length; i++) {
-          var char = possiblePipe[i];
-          if (quoteChars.indexOf(char) !== -1) {
-            quoteTracker[char] = !quoteTracker[char];
-          }
-        }
-
-        // Does the pipe end on an unfinished quote?
-        var inQuote = _.some(quoteChars, function (quoteChar) {
-          return quoteTracker[quoteChar];
-        });
-
-        // If the quotes have all been closed or this is the last possible pipe in the array, add as pipe.
-        if (!inQuote || key * 1 === naivePipes.length - 1) {
-          newPipes.push(commandPart.trim());
-          commandPart = '';
-        } else {
-          // Quote was left open. The pipe character was previously removed when the array was split.
-          commandPart += '|';
-        }
-      }
-
-      // Set the first pipe to command and the rest to pipes.
-      command = newPipes.shift();
-      pipes = pipes.concat(newPipes);
-    }
-
-    function parseMatch() {
-      matchParts = self.matchCommand(command, commands);
-      match = matchParts.command;
-      matchArgs = matchParts.args;
-    }
-
-    parsePipes();
-    parseMatch();
-
-    if (match && _.isFunction(match._parse)) {
-      command = match._parse(command, matchParts.args);
-      parsePipes();
-      parseMatch();
-    }
-
-    return {
-      command: command,
-      match: match,
-      matchArgs: matchArgs,
-      pipes: pipes
-    };
-  },
-
-  /**
-   * Run a raw command string, e.g. foo -bar
-   * against a given list of commands,
-   * and if there is a match, parse the
-   * results.
-   *
-   * @param {String} cmd
-   * @param {Array} cmds
-   * @return {Object}
-   * @api public
-   */
-
-  matchCommand: function matchCommand(cmd, cmds) {
-    var parts = String(cmd).trim().split(' ');
-
-    var match = void 0;
-    var matchArgs = void 0;
-    for (var i = 0; i < parts.length; ++i) {
-      var subcommand = String(parts.slice(0, parts.length - i).join(' ')).trim();
-      match = _.find(cmds, { _name: subcommand }) || match;
-      if (!match) {
-        for (var key in cmds) {
-          var _cmd = cmds[key];
-          var idx = _cmd._aliases.indexOf(subcommand);
-          match = idx > -1 ? _cmd : match;
-        }
-      }
-      if (match) {
-        matchArgs = parts.slice(parts.length - i, parts.length).join(' ');
-        break;
-      }
-    }
-    // If there's no command match, check if the
-    // there's a `catch` command, which catches all
-    // missed commands.
-    if (!match) {
-      match = _.find(cmds, { _catch: true });
-      // If there is one, we still need to make sure we aren't
-      // partially matching command groups, such as `do things` when
-      // there is a command `do things well`. If we match partially,
-      // we still want to show the help menu for that command group.
-      if (match) {
-        var allCommands = _.map(cmds, '_name');
-        var wordMatch = false;
-        for (var _key in allCommands) {
-          var _cmd2 = allCommands[_key];
-          var parts2 = String(_cmd2).split(' ');
-          var cmdParts = String(match.command).split(' ');
-          var matchAll = true;
-          for (var k = 0; k < cmdParts.length; ++k) {
-            if (parts2[k] !== cmdParts[k]) {
-              matchAll = false;
-              break;
-            }
-          }
-          if (matchAll) {
-            wordMatch = true;
-            break;
-          }
-        }
-        if (wordMatch) {
-          match = undefined;
-        } else {
-          matchArgs = cmd;
-        }
-      }
-    }
-
-    return {
-      command: match,
-      args: matchArgs
-    };
-  },
-
-  buildCommandArgs: function buildCommandArgs(passedArgs, cmd, execCommand, isCommandArgKeyPairNormalized) {
-    var args = { options: {} };
-
-    if (isCommandArgKeyPairNormalized) {
-      // Normalize all foo="bar" with "foo='bar'"
-      // This helps implement unix-like key value pairs.
-      var reg = /(['"]?)(\w+)=(?:(['"])((?:(?!\3).)*)\3|(\S+))\1/g;
-      passedArgs = passedArgs.replace(reg, '"$2=\'$4$5\'"');
-    }
-
-    // Types are custom arg types passed
-    // into `minimist` as per its docs.
-    var types = cmd._types || {};
-
-    // Make a list of all boolean options
-    // registered for this command. These are
-    // simply commands that don't have required
-    // or optional args.
-    var booleans = [];
-    cmd.options.forEach(function (opt) {
-      if (opt.required === 0 && opt.optional === 0) {
-        if (opt.short) {
-          booleans.push(opt.short);
-        }
-        if (opt.long) {
-          booleans.push(opt.long);
-        }
-      }
-    });
-
-    // Review the args passed into the command,
-    // and filter out the boolean list to only those
-    // options passed in.
-    // This returns a boolean list of all options
-    // passed in by the caller, which don't have
-    // required or optional args.
-    var passedArgParts = passedArgs.split(' ');
-    types.boolean = booleans.map(function (str) {
-      return String(str).replace(/^-*/, '');
-    }).filter(function (str) {
-      var match = false;
-      var strings = ['-' + str, '--' + str, '--no-' + str];
-      for (var i = 0; i < passedArgParts.length; ++i) {
-        if (strings.indexOf(passedArgParts[i]) > -1) {
-          match = true;
-          break;
-        }
-      }
-      return match;
-    });
-
-    // Use minimist to parse the args.
-    var parsedArgs = this.parseArgs(passedArgs, types);
-
-    function validateArg(arg, cmdArg) {
-      return !(arg === undefined && cmdArg.required === true);
-    }
-
-    // Builds varidiac args and options.
-    var valid = true;
-    var remainingArgs = _.clone(parsedArgs._);
-    for (var l = 0; l < 10; ++l) {
-      var matchArg = cmd._args[l];
-      var passedArg = parsedArgs._[l];
-      if (matchArg !== undefined) {
-        valid = !valid ? false : validateArg(parsedArgs._[l], matchArg);
-        if (!valid) {
-          break;
-        }
-        if (passedArg !== undefined) {
-          if (matchArg.variadic === true) {
-            args[matchArg.name] = remainingArgs;
-          } else {
-            args[matchArg.name] = passedArg;
-            remainingArgs.shift();
-          }
-        }
-      }
-    }
-
-    if (!valid) {
-      return '\n  Missing required argument. Showing Help:';
-    }
-
-    // Looks for ommitted required options and throws help.
-    for (var m = 0; m < cmd.options.length; ++m) {
-      var o = cmd.options[m];
-      var short = String(o.short || '').replace(/-/g, '');
-      var long = String(o.long || '').replace(/--no-/g, '').replace(/^-*/g, '');
-      var exist = parsedArgs[short] !== undefined ? parsedArgs[short] : undefined;
-      exist = exist === undefined && parsedArgs[long] !== undefined ? parsedArgs[long] : exist;
-      var existsNotSet = exist === true || exist === false;
-      if (existsNotSet && o.required !== 0) {
-        return '\n  Missing required value for option ' + (o.long || o.short) + '. Showing Help:';
-      }
-      if (exist !== undefined) {
-        args.options[long || short] = exist;
-      }
-    }
-
-    // Looks for supplied options that don't
-    // exist in the options list.
-    // If the command allows unknown options,
-    // adds it, otherwise throws help.
-    var passedOpts = _.chain(parsedArgs).keys().pull('_').pull('help').value();
-
-    var _loop = function _loop(key) {
-      var opt = passedOpts[key];
-      var optionFound = _.find(cmd.options, function (expected) {
-        if ('--' + opt === expected.long || '--no-' + opt === expected.long || '-' + opt === expected.short) {
-          return true;
-        }
-        return false;
-      });
-      if (optionFound === undefined) {
-        if (cmd._allowUnknownOptions) {
-          args.options[opt] = parsedArgs[opt];
-        } else {
-          return {
-            v: '\n  Invalid option: \'' + opt + '\'. Showing Help:'
-          };
-        }
-      }
-    };
-
-    for (var key in passedOpts) {
-      var _ret = _loop(key);
-
-      if ((typeof _ret === 'undefined' ? 'undefined' : _typeof(_ret)) === "object") return _ret.v;
-    }
-
-    // If args were passed into the programmatic
-    // `vorpal.exec(cmd, args, callback)`, merge
-    // them here.
-    if (execCommand && execCommand.args && _.isObject(execCommand.args)) {
-      args = _.extend(args, execCommand.args);
-    }
-
-    // Looks for a help arg and throws help if any.
-    if (parsedArgs.help || parsedArgs._.indexOf('/?') > -1) {
-      args.options.help = true;
-    }
-
-    return args;
-  },
-
-  /**
-   * Makes an argument name pretty for help.
-   *
-   * @param {String} arg
-   * @return {String}
-   * @api private
-   */
-
-  humanReadableArgName: function humanReadableArgName(arg) {
-    var nameOutput = arg.name + (arg.variadic === true ? '...' : '');
-    return arg.required ? '<' + nameOutput + '>' : '[' + nameOutput + ']';
-  },
-
-  /**
-   * Formats an array to display in a TTY
-   * in a pretty fashion.
-   *
-   * @param {Array} arr
-   * @return {String}
-   * @api public
-   */
-
-  prettifyArray: function prettifyArray(arr) {
-    arr = arr || [];
-    var arrClone = _.clone(arr);
-    var width = process.stdout.columns;
-    var longest = strip(arrClone.sort(function (a, b) {
-      return strip(b).length - strip(a).length;
-    })[0] || '').length + 2;
-    var fullWidth = strip(String(arr.join(''))).length;
-    var fitsOneLine = fullWidth + arr.length * 2 <= width;
-    var cols = Math.floor(width / longest);
-    cols = cols < 1 ? 1 : cols;
-    if (fitsOneLine) {
-      return arr.join('  ');
-    }
-    var col = 0;
-    var lines = [];
-    var line = '';
-    for (var key in arr) {
-      var arrEl = arr[key];
-      if (col < cols) {
-        col++;
-      } else {
-        lines.push(line);
-        line = '';
-        col = 1;
-      }
-      line += this.pad(arrEl, longest, ' ');
-    }
-    if (line !== '') {
-      lines.push(line);
-    }
-    return lines.join('\n');
-  },
-
-  /**
-   * Pads a value with with space or
-   * a specified delimiter to match a
-   * given width.
-   *
-   * @param {String} str
-   * @param {Integer} width
-   * @param {String} delimiter
-   * @return {String}
-   * @api private
-   */
-
-  pad: function pad(str, width, delimiter) {
-    width = Math.floor(width);
-    delimiter = delimiter || ' ';
-    var len = Math.max(0, width - strip(str).length);
-    return str + Array(len + 1).join(delimiter);
-  },
-
-  /**
-   * Pad a row on the start and end with spaces.
-   *
-   * @param {String} str
-   * @return {String}
-   */
-  padRow: function padRow(str) {
-    return str.split('\n').map(function (row) {
-      return '  ' + row + '  ';
-    }).join('\n');
-  },
-
-  // When passing down applied args, we need to turn
-  // them from `{ '0': 'foo', '1': 'bar' }` into ['foo', 'bar']
-  // instead.
-  fixArgsForApply: function fixArgsForApply(obj) {
-    if (!_.isObject(obj)) {
-      if (!_.isArray(obj)) {
-        return [obj];
-      }
-      return obj;
-    }
-    var argArray = [];
-    for (var key in obj) {
-      var aarg = obj[key];
-      argArray.push(aarg);
-    }
-    return argArray;
-  }
-};
-
-/**
- * Expose `util`.
- */
-
-module.exports = exports = util;
\ No newline at end of file
diff --git a/dist/vorpal-commons.js b/dist/vorpal-commons.js
deleted file mode 100755
index 5046703d..00000000
--- a/dist/vorpal-commons.js
+++ /dev/null
@@ -1,52 +0,0 @@
-'use strict';
-
-/**
- * Function library for Vorpal's out-of-the-box
- * API commands. Imported into a Vorpal server
- * through vorpal.use(module).
- */
-
-/**
- * Module dependencies.
- */
-
-var _ = require('lodash');
-
-module.exports = function (vorpal) {
-  /**
-   * Help for a particular command.
-   */
-
-  vorpal.command('help [command...]').description('Provides help for a given command.').action(function (args, cb) {
-    var self = this;
-    if (args.command) {
-      args.command = args.command.join(' ');
-      var name = _.find(this.parent.commands, { _name: String(args.command).toLowerCase().trim() });
-      if (name && !name._hidden) {
-        if (_.isFunction(name._help)) {
-          name._help(args.command, function (str) {
-            self.log(str);
-            cb();
-          });
-          return;
-        }
-        this.log(name.helpInformation());
-      } else {
-        this.log(this.parent._commandHelp(args.command));
-      }
-    } else {
-      this.log(this.parent._commandHelp(args.command));
-    }
-    cb();
-  });
-
-  /**
-   * Exits Vorpal.
-   */
-
-  vorpal.command('exit').alias('quit').description('Exits application.').action(function (args) {
-    args.options = args.options || {};
-    args.options.sessionId = this.session.id;
-    this.parent.exit(args.options);
-  });
-};
\ No newline at end of file
diff --git a/dist/vorpal.js b/dist/vorpal.js
deleted file mode 100755
index cb058647..00000000
--- a/dist/vorpal.js
+++ /dev/null
@@ -1,1326 +0,0 @@
-'use strict';
-
-/**
- * Polyfill for ES6.
- */
-
-if (!global._babelPolyfill) {
-  // When the runtime transformer properly detects all shimmed methods, use instead.
-  // http://www.2ality.com/2015/12/babel6-helpersstandard-library.html#babel-plugin-transform-runtime
-  require('babel-polyfill');
-}
-
-/**
- * Module dependencies.
- */
-
-var _ = require('lodash');
-var EventEmitter = require('events').EventEmitter;
-var Command = require('./command');
-var CommandInstance = require('./command-instance');
-var VorpalUtil = require('./util');
-var ui = require('./ui');
-var Session = require('./session');
-var intercept = require('./intercept');
-var minimist = require('minimist');
-var commons = require('./vorpal-commons');
-var chalk = require('chalk');
-var os = require('os');
-var History = require('./history');
-var LocalStorage = require('./local-storage');
-var wrap = require('wrap-ansi');
-
-/**
- * Initialize a new `Vorpal` instance.
- *
- * @return {Vorpal}
- * @api public
- */
-
-function Vorpal() {
-  if (!(this instanceof Vorpal)) {
-    return new Vorpal();
-  }
-
-  // Program version
-  // Exposed through vorpal.version(str);
-  this._version = '';
-
-  // Program title
-  this._title = '';
-
-  // Program description
-  this._description = '';
-
-  // Program baner
-  this._banner = '';
-
-  // Command line history instance
-  this.cmdHistory = new this.CmdHistoryExtension();
-
-  // Registered `vorpal.command` commands and
-  // their options.
-  this.commands = [];
-
-  // Queue of IP requests, executed async, in sync.
-  this._queue = [];
-
-  // Current command being executed.
-  this._command = undefined;
-
-  // Expose UI.
-  this.ui = ui;
-
-  // Expose chalk as a convenience.
-  this.chalk = chalk;
-
-  // Expose lodash as a convenience.
-  this.lodash = _;
-
-  // Exposed through vorpal.delimiter(str).
-  this._delimiter = 'local@' + String(os.hostname()).split('.')[0] + '~$ ';
-  ui.setDelimiter(this._delimiter);
-
-  // Placeholder for vantage server. If vantage
-  // is used, this will be over-written.
-  this.server = {
-    sessions: []
-  };
-
-  // Whether all stdout is being hooked through a function.
-  this._hooked = false;
-
-  this._useDeprecatedAutocompletion = false;
-
-  // Expose common utilities, like padding.
-  this.util = VorpalUtil;
-
-  this.Session = Session;
-
-  // Active vorpal server session.
-  this.session = new this.Session({
-    local: true,
-    user: 'local',
-    parent: this,
-    delimiter: this._delimiter
-  });
-
-  // Allow unix-like key value pair normalization to be turned off by toggling this switch on.
-  this.isCommandArgKeyPairNormalized = true;
-
-  this._init();
-  return this;
-}
-
-/**
- * Extend Vorpal prototype as an event emitter.
- */
-
-Vorpal.prototype = Object.create(EventEmitter.prototype);
-
-/**
- * Vorpal prototype.
- */
-
-var vorpal = Vorpal.prototype;
-
-/**
- * Expose `Vorpal`.
- */
-
-exports = module.exports = Vorpal;
-
-/**
- * Extension to `constructor`.
- * @api private
- */
-
-Vorpal.prototype._init = function () {
-  var self = this;
-
-  ui.on('vorpal_ui_keypress', function (data) {
-    self.emit('keypress', data);
-    self._onKeypress(data.key, data.value);
-  });
-
-  self.use(commons);
-};
-
-/**
- * Parses `process.argv` and executes
- * a Vorpal command based on it.
- * @api public
- */
-
-Vorpal.prototype.parse = function (argv, options) {
-  options = options || {};
-  var args = argv;
-  var result = this;
-  var catchExists = !(_.find(this.commands, { _catch: true }) === undefined);
-  args.shift();
-  args.shift();
-  if (args.length > 0 || catchExists) {
-    if (options.use === 'minimist') {
-      result = minimist(args);
-    } else {
-      // Wrap the spaced args back in quotes.
-      for (var i = 0; i < args.length; ++i) {
-        if (i === 0) {
-          continue;
-        }
-        if (args[i].indexOf(' ') > -1) {
-          args[i] = '"' + args[i] + '"';
-        }
-      }
-      this.exec(args.join(' '), function (err) {
-        if (err !== undefined && err !== null) {
-          throw new Error(err);
-        }
-        process.exit(0);
-      });
-    }
-  }
-  return result;
-};
-
-/**
- * Sets version of your application's API.
- *
- * @param {String} version
- * @return {Vorpal}
- * @api public
- */
-
-vorpal.version = function (version) {
-  this._version = version;
-  return this;
-};
-
-/**
- * Sets the title of your application.
- *
- * @param {String} title
- * @return {Vorpal}
- * @api public
- */
-
-vorpal.title = function (title) {
-  this._title = title;
-  return this;
-};
-
-/**
- * Sets the description of your application.
- *
- * @param {String} description
- * @return {Vorpal}
- * @api public
- */
-
-vorpal.description = function (description) {
-  this._description = description;
-  return this;
-};
-
-/**
- * Sets the banner of your application.
- *
- * @param {String} banner
- * @return {Vorpal}
- * @api public
- */
-
-vorpal.banner = function (banner) {
-  this._banner = banner;
-  return this;
-};
-
-/**
- * Sets the permanent delimiter for this
- * Vorpal server instance.
- *
- * @param {String} str
- * @return {Vorpal}
- * @api public
- */
-
-vorpal.delimiter = function (str) {
-  this._delimiter = str;
-  if (this.session.isLocal() && !this.session.client) {
-    this.session.delimiter(str);
-  }
-  return this;
-};
-
-/**
- * Imports a library of Vorpal API commands
- * from another Node module as an extension
- * of Vorpal.
- *
- * @param {Array} commands
- * @return {Vorpal}
- * @api public
- */
-
-vorpal.use = function (commands, options) {
-  if (!commands) {
-    return this;
-  }
-  if (_.isFunction(commands)) {
-    commands.call(this, this, options);
-  } else if (_.isString(commands)) {
-    return this.use(require(commands), options);
-  } else {
-    commands = _.isArray(commands) ? commands : [commands];
-    for (var i = 0; i < commands.length; ++i) {
-      var cmd = commands[i];
-      if (cmd.command) {
-        var command = this.command(cmd.command);
-        if (cmd.description) {
-          command.description(cmd.description);
-        }
-        if (cmd.options) {
-          cmd.options = _.isArray(cmd.options) ? cmd.options : [cmd.options];
-          for (var j = 0; j < cmd.options.length; ++j) {
-            command.option(cmd.options[j][0], cmd.options[j][1]);
-          }
-        }
-        if (cmd.action) {
-          command.action(cmd.action);
-        }
-      }
-    }
-  }
-  return this;
-};
-
-/**
- * Registers a new command in the vorpal API.
- *
- * @param {String} name
- * @param {String} desc
- * @param {Object} opts
- * @return {Command}
- * @api public
- */
-
-vorpal.command = function (name, desc, opts) {
-  opts = opts || {};
-  name = String(name);
-
-  var argsRegExp = /(\[[^\]]*\]|\<[^\>]*\>)/g;
-  var args = [];
-  var arg;
-
-  while ((arg = argsRegExp.exec(name)) !== null) {
-    args.push(arg[1]);
-  }
-
-  var cmdNameRegExp = /^([^\[\<]*)/;
-  var cmdName = cmdNameRegExp.exec(name)[0].trim();
-
-  var cmd = new Command(cmdName, this);
-
-  if (desc) {
-    cmd.description(desc);
-    this.executables = true;
-  }
-
-  cmd._noHelp = Boolean(opts.noHelp);
-  cmd._mode = opts.mode || false;
-  cmd._catch = opts.catch || false;
-  cmd._parseExpectedArgs(args);
-  cmd.parent = this;
-
-  var exists = false;
-  for (var i = 0; i < this.commands.length; ++i) {
-    exists = this.commands[i]._name === cmd._name ? true : exists;
-    if (exists) {
-      this.commands[i] = cmd;
-      break;
-    }
-  }
-  if (!exists) {
-    this.commands.push(cmd);
-  } else {
-    console.warn(chalk.yellow('Warning: command named "' + name + '" was registered more than once.\nIf you intend to override a command, you should explicitly remove the first command with command.remove().'));
-  }
-
-  this.emit('command_registered', { command: cmd, name: name });
-
-  return cmd;
-};
-
-/**
- * Registers a new 'mode' command in the vorpal API.
- *
- * @param {String} name
- * @param {String} desc
- * @param {Object} opts
- * @return {Command}
- * @api public
- */
-
-vorpal.mode = function (name, desc, opts) {
-  return this.command(name, desc, _.extend(opts || {}, { mode: true }));
-};
-
-/**
- * Registers a 'catch' command in the vorpal API.
- * This is executed when no command matches are found.
- *
- * @param {String} name
- * @param {String} desc
- * @param {Object} opts
- * @return {Command}
- * @api public
- */
-
-vorpal.catch = function (name, desc, opts) {
-  return this.command(name, desc, _.extend(opts || {}, { catch: true }));
-};
-
-/**
- * An alias to the `catch` command.
- *
- * @param {String} name
- * @param {String} desc
- * @param {Object} opts
- * @return {Command}
- * @api public
- */
-
-vorpal.default = function (name, desc, opts) {
-  return this.command(name, desc, _.extend(opts || {}, { catch: true }));
-};
-
-/**
- * Delegates to ui.log.
- *
- * @param {String} log
- * @return {Vorpal}
- * @api public
- */
-
-vorpal.log = function () {
-  this.ui.log.apply(this.ui, arguments);
-  return this;
-};
-
-/**
- * Intercepts all logging through `vorpal.log`
- * and runs it through the function declared by
- * `vorpal.pipe()`.
- *
- * @param {Function} fn
- * @return {Vorpal}
- * @api public
- */
-
-vorpal.pipe = function (fn) {
-  if (this.ui) {
-    this.ui._pipeFn = fn;
-  }
-  return this;
-};
-
-/**
- * If Vorpal is the local terminal,
- * hook all stdout, through a fn.
- *
- * @return {Vorpal}
- * @api private
- */
-
-vorpal.hook = function (fn) {
-  if (fn !== undefined) {
-    this._hook(fn);
-  } else {
-    this._unhook();
-  }
-  return this;
-};
-
-/**
- * Unhooks stdout capture.
- *
- * @return {Vorpal}
- * @api public
- */
-
-vorpal._unhook = function () {
-  if (this._hooked && this._unhook !== undefined) {
-    this._unhook();
-    this._hooked = false;
-  }
-  return this;
-};
-
-/**
- * Hooks all stdout through a given function.
- *
- * @param {Function} fn
- * @return {Vorpal}
- * @api public
- */
-
-vorpal._hook = function (fn) {
-  if (this._hooked && this._unhook !== undefined) {
-    this._unhook();
-  }
-  this._unhook = intercept(fn);
-  this._hooked = true;
-  return this;
-};
-
-/**
- * History module used to get command history
- */
-vorpal.CmdHistoryExtension = History;
-
-/**
- * Set id for command line history
- * @param id
- * @return {Vorpal}
- * @api public
- */
-vorpal.history = function (id) {
-  this.cmdHistory.setId(id);
-  return this;
-};
-
-/**
- * Set id for local storage
- * @param id
- * @return {Vorpal}
- * @api public
- */
-vorpal.localStorage = function (id) {
-  var ls = Object.create(LocalStorage);
-  ls.setId(id);
-  _.extend(this.localStorage, ls);
-  return this;
-};
-
-/**
- * Set the path to where command line history is persisted.
- * Must be called before vorpal.history
- * @param path
- * @return {Vorpal}
- * @api public
- */
-vorpal.historyStoragePath = function (path) {
-  this.cmdHistory.setStoragePath(path);
-  return this;
-};
-
-/**
- * Hook the tty prompt to this given instance
- * of vorpal.
- *
- * @return {Vorpal}
- * @api public
- */
-
-vorpal.show = function () {
-  ui.attach(this);
-  return this;
-};
-
-/**
- * Disables the vorpal prompt on the
- * local terminal.
- *
- * @return {Vorpal}
- * @api public
- */
-
-vorpal.hide = function () {
-  ui.detach(this);
-  return this;
-};
-
-/**
- * Listener for a UI keypress. Either
- * handles the keypress locally or sends
- * it upstream.
- *
- * @param {String} key
- * @param {String} value
- * @api private
- */
-
-vorpal._onKeypress = function (key, value) {
-  var self = this;
-  if (this.session.isLocal() && !this.session.client && !this._command) {
-    this.session.getKeypressResult(key, value, function (err, result) {
-      if (!err && result !== undefined) {
-        if (_.isArray(result)) {
-          var formatted = VorpalUtil.prettifyArray(result);
-          self.ui.imprint();
-          self.session.log(formatted);
-        } else {
-          self.ui.input(result);
-        }
-      }
-    });
-  } else {
-    this._send('vantage-keypress-upstream', 'upstream', {
-      key: key,
-      value: value,
-      sessionId: this.session.id
-    });
-  }
-};
-
-/**
- * For use in vorpal API commands, sends
- * a prompt command downstream to the local
- * terminal. Executes a prompt and returns
- * the response upstream to the API command.
- *
- * @param {Object} options
- * @param {Function} userCallback
- * @return {Vorpal}
- * @api public
- */
-
-vorpal.prompt = function () {
-  var _this = this;
-
-  var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
-  var userCallback = arguments[1];
-
-  return new Promise(function (resolve) {
-    // Setup callback to also resolve promise.
-    var cb = function cb(response) {
-      // Does not currently handle Inquirer validation errors.
-      resolve(response);
-      if (userCallback) {
-        userCallback(response);
-      }
-    };
-
-    var prompt = void 0;
-    var ssn = _this.getSessionById(options.sessionId);
-
-    if (!ssn) {
-      throw new Error('Vorpal.prompt was called without a passed Session ID.');
-    }
-
-    var handler = function handler(data) {
-      var response = data.value;
-      _this.removeListener('vantage-prompt-upstream', handler);
-      cb(response);
-    };
-
-    if (ssn.isLocal()) {
-      ui.setDelimiter(options.message || ssn.delimiter());
-      prompt = ui.prompt(options, function (result) {
-        ui.setDelimiter(ssn.delimiter());
-        cb(result);
-      });
-    } else {
-      _this.on('vantage-prompt-upstream', handler);
-      _this._send('vantage-prompt-downstream', 'downstream', { options: options, value: undefined, sessionId: ssn.id });
-    }
-    return prompt;
-  });
-};
-
-/**
- * Renders the CLI prompt or sends the
- * request to do so downstream.
- *
- * @param {Object} data
- * @return {Vorpal}
- * @api private
- */
-
-vorpal._prompt = function (data) {
-  var self = this;
-  var prompt;
-  data = data || {};
-  if (!data.sessionId) {
-    data.sessionId = self.session.id;
-  }
-  var ssn = self.getSessionById(data.sessionId);
-
-  // If we somehow got to _prompt and aren't the
-  // local client, send the command downstream.
-  if (!ssn.isLocal()) {
-    this._send('vantage-resume-downstream', 'downstream', { sessionId: data.sessionId });
-    return self;
-  }
-
-  if (ui.midPrompt()) {
-    return self;
-  }
-
-  prompt = ui.prompt({
-    type: 'input',
-    name: 'command',
-    message: ssn.fullDelimiter()
-  }, function (result) {
-    if (self.ui._cancelled === true) {
-      self.ui._cancelled = false;return;
-    }
-    var str = String(result.command).trim();
-    self.emit('client_prompt_submit', str);
-    if (str === '' || str === 'undefined') {
-      self._prompt(data);return;
-    }
-    self.exec(str, function () {
-      self._prompt(data);
-    });
-  });
-
-  return prompt;
-};
-
-/**
- * Executes a vorpal API command and
- * returns the response either through a
- * callback or Promise in the absence
- * of a callback.
- *
- * A little black magic here - because
- * we sometimes have to send commands 10
- * miles upstream through 80 other instances
- * of vorpal and we aren't going to send
- * the callback / promise with us on that
- * trip, we store the command, callback,
- * resolve and reject objects (as they apply)
- * in a local vorpal._command variable.
- *
- * When the command eventually comes back
- * downstream, we dig up the callbacks and
- * finally resolve or reject the promise, etc.
- *
- * Lastly, to add some more complexity, we throw
- * command and callbacks into a queue that will
- * be unearthed and sent in due time.
- *
- * @param {String} cmd
- * @param {Function} cb
- * @return {Promise or Vorpal}
- * @api public
- */
-
-vorpal.exec = function (cmd, args, cb) {
-  var self = this;
-  var ssn = self.session;
-
-  cb = _.isFunction(args) ? args : cb;
-  args = args || {};
-
-  if (args.sessionId) {
-    ssn = self.getSessionById(args.sessionId);
-  }
-
-  var command = {
-    command: cmd,
-    args: args,
-    callback: cb,
-    session: ssn
-  };
-
-  if (cb !== undefined) {
-    self._queue.push(command);
-    self._queueHandler();
-    return self;
-  }
-
-  return new Promise(function (resolve, reject) {
-    command.resolve = resolve;
-    command.reject = reject;
-    self._queue.push(command);
-    self._queueHandler();
-  });
-};
-
-/**
- * Executes a Vorpal command in sync.
- *
- * @param {String} cmd
- * @param {Object} args
- * @return {*} stdout
- * @api public
- */
-
-vorpal.execSync = function (cmd, options) {
-  var self = this;
-  var ssn = self.session;
-  options = options || {};
-  if (options.sessionId) {
-    ssn = self.getSessionById(options.sessionId);
-  }
-
-  var command = {
-    command: cmd,
-    args: options,
-    session: ssn,
-    sync: true,
-    options: options
-  };
-
-  return self._execQueueItem(command);
-};
-
-/**
- * Commands issued to Vorpal server
- * are executed in sequence. Called once
- * when a command is inserted or completes,
- * shifts the next command in the queue
- * and sends it to `vorpal._execQueueItem`.
- *
- * @api private
- */
-
-vorpal._queueHandler = function () {
-  if (this._queue.length > 0 && this._command === undefined) {
-    var item = this._queue.shift();
-    this._execQueueItem(item);
-  }
-};
-
-/**
- * Fires off execution of a command - either
- * calling upstream or executing locally.
- *
- * @param {Object} cmd
- * @api private
- */
-
-vorpal._execQueueItem = function (cmd) {
-  var self = this;
-  self._command = cmd;
-  if (cmd.session.isLocal() && !cmd.session.client) {
-    return this._exec(cmd);
-  }
-  self._send('vantage-command-upstream', 'upstream', {
-    command: cmd.command,
-    args: cmd.args,
-    completed: false,
-    sessionId: cmd.session.id
-  });
-};
-
-/**
- * Executes a vorpal API command.
- * Warning: Dragons lie beyond this point.
- *
- * @param {String} item
- * @api private
- */
-
-vorpal._exec = function (item) {
-  var self = this;
-  item = item || {};
-  item.command = item.command || '';
-  var modeCommand = item.command;
-  item.command = item.session._mode ? item.session._mode : item.command;
-
-  var promptCancelled = false;
-  if (this.ui._midPrompt) {
-    promptCancelled = true;
-    this.ui.cancel();
-  }
-
-  if (!item.session) {
-    throw new Error('Fatal Error: No session was passed into command for execution: ' + item);
-  }
-
-  if (String(item.command).indexOf('undefine') > -1) {
-    throw new Error('vorpal._exec was called with an undefined command.');
-  }
-
-  // History for our 'up' and 'down' arrows.
-  item.session.history(item.session._mode ? modeCommand : item.command);
-
-  var commandData = this.util.parseCommand(item.command, this.commands);
-  item.command = commandData.command;
-  item.pipes = commandData.pipes;
-  var match = commandData.match;
-  var matchArgs = commandData.matchArgs;
-
-  function throwHelp(cmd, msg, alternativeMatch) {
-    if (msg) {
-      cmd.session.log(msg);
-    }
-    var pickedMatch = alternativeMatch || match;
-    cmd.session.log(pickedMatch.helpInformation());
-  }
-
-  function callback(cmd, err, msg, argus) {
-    // Resume the prompt if we had to cancel
-    // an active prompt, due to programmatic
-    // execution.
-    if (promptCancelled) {
-      self._prompt();
-    }
-    if (cmd.sync) {
-      // If we want the command to be fatal,
-      // throw a real error. Otherwise, silently
-      // return the error.
-      delete self._command;
-      if (err) {
-        if (cmd.options && (cmd.options.fatal === true || vorpal._fatal === true)) {
-          throw new Error(err);
-        }
-        return err;
-      }
-      return msg;
-    } else if (cmd.callback) {
-      if (argus) {
-        cmd.callback.apply(self, argus);
-      } else {
-        cmd.callback.call(self, err, msg);
-      }
-    } else if (!err && cmd.resolve) {
-      cmd.resolve(msg);
-    } else if (err && cmd.reject) {
-      cmd.reject(msg);
-    }
-    delete self._command;
-    self._queueHandler();
-  }
-
-  if (match) {
-    item.fn = match._fn;
-    item._cancel = match._cancel;
-    item.validate = match._validate;
-    item.commandObject = match;
-    var init = match._init || function (arrgs, cb) {
-      cb();
-    };
-    var delimiter = match._delimiter || String(item.command).toLowerCase() + ':';
-
-    item.args = self.util.buildCommandArgs(matchArgs, match, item, self.isCommandArgKeyPairNormalized);
-
-    // If we get a string back, it's a validation error.
-    // Show help and return.
-    if (_.isString(item.args) || !_.isObject(item.args)) {
-      throwHelp(item, item.args);
-      return callback(item, undefined, item.args);
-    }
-
-    // Build the piped commands.
-    var allValid = true;
-    for (var j = 0; j < item.pipes.length; ++j) {
-      var commandParts = self.util.matchCommand(item.pipes[j], self.commands);
-      if (!commandParts.command) {
-        item.session.log(self._commandHelp(item.pipes[j]));
-        allValid = false;
-        break;
-      }
-      commandParts.args = self.util.buildCommandArgs(commandParts.args, commandParts.command);
-      if (_.isString(commandParts.args) || !_.isObject(commandParts.args)) {
-        throwHelp(item, commandParts.args, commandParts.command);
-        allValid = false;
-        break;
-      }
-      item.pipes[j] = commandParts;
-    }
-    // If invalid piped commands, return.
-    if (!allValid) {
-      return callback(item);
-    }
-
-    // If `--help` or `/?` is passed, do help.
-    if (item.args.options.help && _.isFunction(match._help)) {
-      // If the command has a custom help function, run it
-      // as the actual "command". In this way it can go through
-      // the whole cycle and expect a callback.
-      item.fn = match._help;
-      delete item.validate;
-      delete item._cancel;
-    } else if (item.args.options.help) {
-      // Otherwise, throw the standard help.
-      throwHelp(item, '');
-      return callback(item);
-    }
-
-    // If this command throws us into a 'mode',
-    // prepare for it.
-    if (match._mode === true && !item.session._mode) {
-      // Assign vorpal to be in a 'mode'.
-      item.session._mode = item.command;
-      // Execute the mode's `init` function
-      // instead of the `action` function.
-      item.fn = init;
-      delete item.validate;
-
-      self.cmdHistory.enterMode();
-      item.session.modeDelimiter(delimiter);
-    } else if (item.session._mode) {
-      if (String(modeCommand).trim() === 'exit') {
-        self._exitMode({ sessionId: item.session.id });
-        return callback(item);
-      }
-      // This executes when actually in a 'mode'
-      // session. We now pass in the raw text of what
-      // is typed into the first param of `action`
-      // instead of arguments.
-      item.args = modeCommand;
-    }
-
-    if (item.sync === true) {
-      // If we're running synchronous commands,
-      // we don't support piping.
-      var response;
-      var error;
-      try {
-        response = item.fn.call(new CommandInstance({
-          downstream: undefined,
-          commandWrapper: item,
-          commandObject: item.commandObject,
-          args: item.args
-        }), item.args);
-      } catch (e) {
-        error = e;
-      }
-      return callback(item, error, response);
-    }
-
-    // Builds commandInstance objects for every
-    // command and piped command included in the
-    // execution string.
-
-    // Build the instances for each pipe.
-    item.pipes = item.pipes.map(function (pipe) {
-      return new CommandInstance({
-        commandWrapper: item,
-        command: pipe.command._name,
-        commandObject: pipe.command,
-        args: pipe.args
-      });
-    });
-
-    // Reverse through the pipes and assign the
-    // `downstream` object of each parent to its
-    // child command.
-    for (var k = item.pipes.length - 1; k > -1; --k) {
-      var downstream = item.pipes[k + 1];
-      item.pipes[k].downstream = downstream;
-    }
-
-    item.session.execCommandSet(item, function (wrapper, err, data, argus) {
-      callback(wrapper, err, data, argus);
-    });
-  } else {
-    // If no command match, just return.
-    item.session.log(this._commandHelp(item.command));
-    return callback(item, undefined, 'Invalid command.');
-  }
-};
-
-/**
- * Exits out of a give 'mode' one is in.
- * Reverts history and delimiter back to
- * regular vorpal usage.
- *
- * @api private
- */
-
-vorpal._exitMode = function (options) {
-  var ssn = this.getSessionById(options.sessionId);
-  ssn._mode = false;
-  this.cmdHistory.exitMode();
-  ssn.modeDelimiter(false);
-  this.emit('mode_exit', this.cmdHistory.peek());
-};
-
-/**
- * Registers a custom handler for SIGINT.
- * Vorpal exits with 0 by default
- * on a sigint.
- *
- * @param {Function} fn
- * @return {Vorpal}
- * @api public
- */
-
-vorpal.sigint = function (fn) {
-  if (_.isFunction(fn)) {
-    ui.sigint(fn);
-  } else {
-    throw new Error('vorpal.sigint must be passed in a valid function.');
-  }
-  return this;
-};
-
-/**
- * Returns the instance of  given command.
- *
- * @param {String} cmd
- * @return {Command}
- * @api public
- */
-
-vorpal.find = function (name) {
-  return _.find(this.commands, { _name: name });
-};
-
-/**
- * Registers custom help.
- *
- * @param {Function} fn
- * @return {Vorpal}
- * @api public
- */
-
-vorpal.help = function (fn) {
-  this._help = fn;
-};
-
-/**
- * Returns help string for a given command.
- *
- * @param {String} command
- * @api private
- */
-
-vorpal._commandHelp = function (command) {
-  if (!this.commands.length) {
-    return '';
-  }
-
-  if (this._help !== undefined && _.isFunction(this._help)) {
-    return this._help(command);
-  }
-
-  var matches = [];
-  var singleMatches = [];
-
-  command = command ? String(command).trim().toLowerCase() : undefined;
-  for (var i = 0; i < this.commands.length; ++i) {
-    var parts = String(this.commands[i]._name).split(' ');
-    if (parts.length === 1 && parts[0] === command && !this.commands[i]._hidden && !this.commands[i]._catch) {
-      singleMatches.push(command);
-    }
-    var str = '';
-    for (var j = 0; j < parts.length; ++j) {
-      str = String(str + ' ' + parts[j]).trim();
-      if (str === command && !this.commands[i]._hidden && !this.commands[i]._catch) {
-        matches.push(this.commands[i]);
-        break;
-      }
-    }
-  }
-
-  var invalidString = command && matches.length === 0 && singleMatches.length === 0 ? ['', '  Invalid Command. Showing Help:', ''].join('\n') : '';
-
-  var commandMatch = matches.length > 0;
-  var commandMatchLength = commandMatch ? String(command).trim().split(' ').length + 1 : 1;
-  matches = matches.length === 0 ? this.commands : matches;
-
-  var skipGroups = !(matches.length + 6 > process.stdout.rows);
-
-  var commands = matches.filter(function (cmd) {
-    return !cmd._noHelp;
-  }).filter(function (cmd) {
-    return !cmd._catch;
-  }).filter(function (cmd) {
-    return !cmd._hidden;
-  }).filter(function (cmd) {
-    if (skipGroups === true) {
-      return true;
-    }
-    return String(cmd._name).trim().split(' ').length <= commandMatchLength;
-  }).map(function (cmd) {
-    var args = cmd._args.map(function (arg) {
-      return VorpalUtil.humanReadableArgName(arg);
-    }).join(' ');
-
-    return [cmd._name + (cmd._alias ? '|' + cmd._alias : '') + (cmd.options.length ? ' [options]' : '') + ' ' + args, cmd.description() || ''];
-  });
-
-  var width = commands.reduce(function (max, commandX) {
-    return Math.max(max, commandX[0].length);
-  }, 0);
-
-  var counts = {};
-
-  var groups = _.uniq(matches.filter(function (cmd) {
-    return String(cmd._name).trim().split(' ').length > commandMatchLength;
-  }).map(function (cmd) {
-    return String(cmd._name).split(' ').slice(0, commandMatchLength).join(' ');
-  }).map(function (cmd) {
-    counts[cmd] = counts[cmd] || 0;
-    counts[cmd]++;
-    return cmd;
-  })).map(function (cmd) {
-    var prefix = '    ' + VorpalUtil.pad(cmd + ' *', width) + '  ' + counts[cmd] + ' sub-command' + (counts[cmd] === 1 ? '' : 's') + '.';
-    return prefix;
-  });
-
-  groups = skipGroups ? [] : groups;
-
-  var descriptionWidth = process.stdout.columns - (width + 4);
-
-  var commandsString = commands.length < 1 ? '' : '\n  Commands:\n\n' + commands.map(function (cmd) {
-    var prefix = '    ' + VorpalUtil.pad(cmd[0], width) + '  ';
-    var suffix = wrap(cmd[1], descriptionWidth - 8).split('\n');
-    for (var _i = 0; _i < suffix.length; ++_i) {
-      if (_i !== 0) {
-        suffix[_i] = VorpalUtil.pad('', width + 6) + suffix[_i];
-      }
-    }
-    suffix = suffix.join('\n');
-    return prefix + suffix;
-  }).join('\n') + '\n\n';
-
-  var groupsString = groups.length < 1 ? '' : '  Command Groups:\n\n' + groups.join('\n') + '\n';
-
-  var results = String(this._helpHeader(!!invalidString) + invalidString + commandsString + '\n' + groupsString).replace(/\n\n\n/g, '\n\n').replace(/\n\n$/, '\n');
-
-  return results;
-};
-
-vorpal._helpHeader = function (hideTitle) {
-  var header = [];
-
-  if (this._banner) {
-    header.push(VorpalUtil.padRow(this._banner), '');
-  }
-
-  // Only show under specific conditions
-  if (this._title && !hideTitle) {
-    var title = this._title;
-
-    if (this._version) {
-      title += ' v' + this._version;
-    }
-
-    header.push(VorpalUtil.padRow(title));
-
-    if (this._description) {
-      var descWidth = process.stdout.columns * 0.75; // Only 75% of the screen
-
-      header.push(VorpalUtil.padRow(wrap(this._description, descWidth)));
-    }
-  }
-
-  // Pad the top and bottom
-  if (header.length) {
-    header.unshift('');
-    header.push('');
-  }
-
-  return header.join('\n');
-};
-
-/**
- * Abstracts the logic for sending and
- * receiving sockets upstream and downstream.
- *
- * To do: Has the start of logic for vorpal sessions,
- * which I haven't fully confronted yet.
- *
- * @param {String} str
- * @param {String} direction
- * @param {String} data
- * @param {Object} options
- * @api private
- */
-
-vorpal._send = function (str, direction, data, options) {
-  options = options || {};
-  data = data || {};
-  var ssn = this.getSessionById(data.sessionId);
-  if (!ssn) {
-    throw new Error('No Sessions logged for ID ' + data.sessionId + ' in vorpal._send.');
-  }
-  if (direction === 'upstream') {
-    if (ssn.client) {
-      ssn.client.emit(str, data);
-    }
-  } else if (direction === 'downstream') {
-    if (ssn.server) {
-      ssn.server.emit(str, data);
-    }
-  }
-};
-
-/**
- * Handles the 'middleman' in a 3+-way vagrant session.
- * If a vagrant instance is a 'client' and 'server', it is
- * now considered a 'proxy' and its sole purpose is to proxy
- * information through, upstream or downstream.
- *
- * If vorpal is not a proxy, it resolves a promise for further
- * code that assumes one is now an end user. If it ends up
- * piping the traffic through, it never resolves the promise.
- *
- * @param {String} str
- * @param {String} direction
- * @param {String} data
- * @param {Object} options
- * @api private
- */
-vorpal._proxy = function (str, direction, data, options) {
-  var self = this;
-  return new Promise(function (resolve) {
-    var ssn = self.getSessionById(data.sessionId);
-    if (ssn && !ssn.isLocal() && ssn.client) {
-      self._send(str, direction, data, options);
-    } else {
-      resolve();
-    }
-  });
-};
-
-/**
- * Returns session by id.
- *
- * @param {Integer} id
- * @return {Session}
- * @api public
- */
-
-vorpal.getSessionById = function (id) {
-  if (_.isObject(id)) {
-    throw new Error('vorpal.getSessionById: id ' + JSON.stringify(id) + ' should not be an object.');
-  }
-  var ssn = _.find(this.server.sessions, { id: id });
-  ssn = this.session.id === id ? this.session : ssn;
-  if (!id) {
-    throw new Error('vorpal.getSessionById was called with no ID passed.');
-  }
-  if (!ssn) {
-    var sessions = {
-      local: this.session.id,
-      server: _.map(this.server.sessions, 'id')
-    };
-    throw new Error('No session found for id ' + id + ' in vorpal.getSessionById. Sessions: ' + JSON.stringify(sessions));
-  }
-  return ssn;
-};
-
-/**
- * Kills a remote vorpal session. If user
- * is running on a direct terminal, will kill
- * node instance after confirmation.
- *
- * @param {Object} options
- * @param {Function} cb
- * @api private
- */
-
-vorpal.exit = function (options) {
-  var ssn = this.getSessionById(options.sessionId);
-  this.emit('vorpal_exit');
-  if (ssn.isLocal()) {
-    process.exit(0);
-  } else {
-    ssn.server.emit('vantage-close-downstream', { sessionId: ssn.id });
-  }
-};
-
-Object.defineProperty(vorpal, 'activeCommand', {
-  get: function get() {
-    var result = this._command ? this._command.commandInstance : undefined;
-    return result;
-  }
-});
\ No newline at end of file
diff --git a/examples/mode/README.md b/examples/mode/README.md
index c9854753..f8f2715d 100755
--- a/examples/mode/README.md
+++ b/examples/mode/README.md
@@ -1,13 +1,12 @@
-# Vantage Server with a `mode` command.
-
-This is an example of setting up a `mode` command to establish a basic REPL client.
- 
-### Running the file
-
-```bash
-$ git clone git://github.com/dthree/vantage.git vantage
-$ cd ./vantage
-$ npm install
-$ node ./examples/mode/mode.js
-```
-
+# Vantage Server with a `mode` command.
+
+This is an example of setting up a `mode` command to establish a basic REPL client.
+
+### Running the file
+
+```bash
+$ git clone git://github.com/dthree/vantage.git vantage
+$ cd ./vantage
+$ npm install
+$ node ./examples/mode/mode.js
+```
diff --git a/examples/mode/mode.js b/examples/mode/mode.js
index 8e623369..cabe55c9 100755
--- a/examples/mode/mode.js
+++ b/examples/mode/mode.js
@@ -30,7 +30,7 @@ var server;
 server = new Vorpal()
   .banner(banner)
   .delimiter(delimiter)
-  .listen(port)
+  // .listen(port)
   .show();
 
 /**
@@ -68,7 +68,7 @@ server
     try {
       var res = eval(command);
       var log = (_.isString(res)) ? String(res).white : res;
-      console.log(log);
+      // console.log(log);
       cb(res);
     } catch (e) {
       console.log(e);
diff --git a/gulpfile.babel.js b/gulpfile.babel.js
deleted file mode 100755
index 74df79e3..00000000
--- a/gulpfile.babel.js
+++ /dev/null
@@ -1,23 +0,0 @@
-const gulp = require('gulp');
-const _gulp = require('load-plugins')('gulp-*');
-
-const paths = {};
-paths.src = './lib/**/*.js';
-paths.dist = './dist';
-
-gulp.task('lint', () => {
-  return gulp.src(paths.src)
-    .pipe(_gulp.xo());
-});
-
-gulp.task('build', () => {
-  return gulp.src(paths.src)
-    .pipe(_gulp.babel())
-    .pipe(gulp.dest(paths.dist));
-});
-
-gulp.task('watch', ['build'], () => {
-  gulp.watch(paths.src, ['build']);
-});
-
-gulp.task('default', ['watch']);
diff --git a/lib/command-instance.js b/lib/command-instance.js
index 03d9cb85..b73e9fe5 100755
--- a/lib/command-instance.js
+++ b/lib/command-instance.js
@@ -1,37 +1,22 @@
-'use strict';
-
-/**
- * Module dependencies.
- */
-
 const util = require('./util');
-const _ = require('lodash');
 
 class CommandInstance {
+  constructor(options = {}) {
+    const { command, commandObject, args, commandWrapper, callback, downstream } = options;
 
-  /**
-   * Initialize a new `CommandInstance` instance.
-   *
-   * @param {Object} params
-   * @return {CommandInstance}
-   * @api public
-   */
-
-  constructor({command, commandObject, args, commandWrapper, callback, downstream} = {}) {
+    this.args = args;
+    this.callback = callback;
     this.command = command;
     this.commandObject = commandObject;
-    this.args = args;
     this.commandWrapper = commandWrapper;
-    this.session = commandWrapper.session;
-    this.parent = this.session.parent;
-    this.callback = callback;
     this.downstream = downstream;
+    this.parent = commandWrapper.session.parent;
+    this.session = commandWrapper.session;
   }
 
   /**
    * Cancel running command.
    */
-
   cancel() {
     this.session.emit('vorpal_command_cancel');
   }
@@ -39,39 +24,52 @@ class CommandInstance {
   /**
    * Route stdout either through a piped command, or the session's stdout.
    */
+  log(...params) {
+    const args = util.fixArgsForApply(params);
 
-  log() {
-    const args = util.fixArgsForApply(arguments);
-    if (this.downstream) {
-      const fn = this.downstream.commandObject._fn || function () {};
-      this.session.registerCommand();
-      this.downstream.args.stdin = args;
-      const onComplete = (err) => {
-        if (this.session.isLocal() && err) {
-          this.session.log(err.stack || err);
-          this.session.parent.emit('client_command_error', {command: this.downstream.command, error: err});
-        }
-        this.session.completeCommand();
-      };
-
-      const validate = this.downstream.commandObject._validate;
-      if (_.isFunction(validate)) {
-        try {
-          validate.call(this.downstream, this.downstream.args);
-        } catch (e) {
-          // Log error without piping to downstream on validation error.
-          this.session.log(e.toString());
-          onComplete();
-          return;
-        }
+    if (!this.downstream) {
+      this.session.log(...args);
+
+      return;
+    }
+
+    this.session.registerCommand();
+    this.downstream.args.stdin = args;
+
+    const onComplete = (error) => {
+      if (this.session.isLocal() && error) {
+        this.session.log(error.stack || error);
+        this.session.parent.emit('client_command_error', {
+          command: this.downstream.command,
+          error,
+        });
+      }
+
+      this.session.completeCommand();
+    };
+
+    const validate = this.downstream.commandObject._validate;
+
+    if (typeof validate === 'function') {
+      try {
+        validate.call(this.downstream, this.downstream.args);
+      } catch (e) {
+        // Log error without piping to downstream on validation error.
+        this.session.log(e.toString());
+        onComplete();
+
+        return;
       }
+    }
+
+    const callback = this.downstream.commandObject._fn;
+
+    if (callback) {
+      const response = callback.call(this.downstream, this.downstream.args, onComplete);
 
-      const res = fn.call(this.downstream, this.downstream.args, onComplete);
-      if (res && _.isFunction(res.then)) {
-        res.then(onComplete, onComplete);
+      if (response instanceof Promise) {
+        response.then(onComplete, onComplete);
       }
-    } else {
-      this.session.log.apply(this.session, args);
     }
   }
 
diff --git a/lib/command.js b/lib/command.js
index caabd93b..5c427c1e 100755
--- a/lib/command.js
+++ b/lib/command.js
@@ -1,598 +1,443 @@
-'use strict';
+const { EventEmitter } = require('events');
+const Option = require('./option');
+const VorpalUtil = require('./util');
+const camelCase = require('./helpers/camelCase');
+
+const VARIADIC_LENGTH = 3;
+
+class Command extends EventEmitter {
+  constructor(name, parent) {
+    super();
+
+    this.commands = [];
+    this.options = [];
+    this._after = undefined;
+    this._aliases = [];
+    this._allowUnknownOptions = false;
+    this._args = [];
+    this._catch = false;
+    this._help = undefined;
+    this._hidden = false;
+    this._init = undefined;
+    this._mode = false;
+    this._name = name;
+    this._parent = parent;
+    this._relay = false;
+    this._types = {};
+  }
+
+  /**
+   * Registers an option for given command.
+   */
+  option(flags, description, options = {}) {
+    const option = new Option(flags, description, options);
+    const name = camelCase(option.name());
+    let defaultValue;
+
+    // preassign default value only for --no-*, [optional], or <required>
+    if (option.bool === false || option.optional || option.required) {
+      // when --no-* we make sure default is true
+      if (option.bool === false) {
+        defaultValue = true;
+      }
+
+      // preassign only if we have a default
+      if (typeof defaultValue !== 'undefined') {
+        this[name] = defaultValue;
+      }
+    }
+
+    // register the option
+    this.options.push(option);
+
+    // when it's passed, assign the value and conditionally invoke the callback
+    this.on(option.name(), (value) => {
+      if (typeof this[name] === 'boolean' || typeof this[name] === 'undefined') {
+        // if no value, bool true, and we have a default, then use it!
+        if (value === null) {
+          this[name] = option.bool ? (defaultValue || true) : false;
+        } else {
+          this[name] = value;
+        }
+      } else if (value !== null) {
+        this[name] = value;
+      }
+    });
+
+    return this;
+  }
+
+  /**
+   * Let's you compose other funtions to extend the command.
+   */
+  use(fn) {
+    return fn(this);
+  }
 
-/**
- * Module dependencies.
- */
+  /**
+   * Defines an action for a given command.
+   */
+  action(fn) {
+    this._fn = fn;
 
-var EventEmitter = require('events').EventEmitter;
-var Option = require('./option');
-var VorpalUtil = require('./util');
-var _ = require('lodash');
+    return this;
+  }
 
-/**
- * Command prototype.
- */
+  /**
+   * Defines a function to validate arguments
+   * before action is performed. Arguments
+   * are valid if no errors are thrown from
+   * the function.
+   */
+  validate(fn) {
+    this._validate = fn;
 
-var command = Command.prototype;
+    return this;
+  }
 
-/**
- * Expose `Command`.
- */
+  /**
+   * Defines a function to be called when the
+   * command is canceled.
+   */
+  cancel(fn) {
+    this._cancel = fn;
 
-module.exports = exports = Command;
+    return this;
+  }
 
-/**
- * Initialize a new `Command` instance.
- *
- * @param {String} name
- * @param {Vorpal} parent
- * @return {Command}
- * @api public
- */
+  /**
+   * Defines a method to be called when
+   * the command set has completed.
+   */
+  done(fn) {
+    this._done = fn;
 
-function Command(name, parent) {
-  if (!(this instanceof Command)) {
-    return new Command();
+    return this;
   }
-  this.commands = [];
-  this.options = [];
-  this._args = [];
-  this._aliases = [];
-  this._name = name;
-  this._relay = false;
-  this._hidden = false;
-  this._parent = parent;
-  this._mode = false;
-  this._catch = false;
-  this._help = undefined;
-  this._init = undefined;
-  this._after = undefined;
-  this._allowUnknownOptions = false;
-}
 
-/**
- * Registers an option for given command.
- *
- * @param {String} flags
- * @param {String} description
- * @param {Function} fn
- * @param {String} defaultValue
- * @return {Command}
- * @api public
- */
-
-command.option = function (flags, description, autocomplete) {
-  var self = this;
-  var option = new Option(flags, description, autocomplete);
-  var oname = option.name();
-  var name = _camelcase(oname);
-  var defaultValue;
-
-  // preassign default value only for --no-*, [optional], or <required>
-  if (option.bool === false || option.optional || option.required) {
-    // when --no-* we make sure default is true
-    if (option.bool === false) {
-      defaultValue = true;
-    }
-    // preassign only if we have a default
-    if (defaultValue !== undefined) {
-      self[name] = defaultValue;
+  /**
+   * Defines tabbed auto-completion
+   * for the given command. Favored over
+   * deprecated command.autocompletion.
+   */
+  autocomplete(obj) {
+    this._autocomplete = obj;
+
+    return this;
+  }
+
+  /**
+   * Defines tabbed auto-completion rules
+   * for the given command.
+   */
+  autocompletion(param) {
+    this._parent._useDeprecatedAutocompletion = true;
+
+    if (typeof param !== 'function') {
+      throw new Error('An invalid object type was passed into the first parameter of Command#autocompletion: function expected.');
     }
+
+    this._autocompletion = param;
+
+    return this;
   }
 
-  // register the option
-  this.options.push(option);
-
-  // when it's passed assign the value
-  // and conditionally invoke the callback
-  this.on(oname, function (val) {
-    // unassigned or bool
-    if (typeof self[name] === 'boolean' || typeof self[name] === 'undefined') {
-      // if no value, bool true, and we have a default, then use it!
-      if (val === null) {
-        self[name] = option.bool ?
-          defaultValue || true :
-          false;
-      } else {
-        self[name] = val;
-      }
-    } else if (val !== null) {
-      // reassign
-      self[name] = val;
+  /**
+   * Defines an init action for a mode command.
+   */
+  init(fn) {
+    if (this._mode !== true) {
+      throw Error('Cannot call init from a non-mode action.');
     }
-  });
-
-  return this;
-};
-
-/**
- * Defines an action for a given command.
- *
- * @param {Function} fn
- * @return {Command}
- * @api public
- */
-
-command.action = function (fn) {
-  var self = this;
-  self._fn = fn;
-  return this;
-};
-
-/**
- * Let's you compose other funtions to extend the command.
- *
- * @param {Function} fn
- * @return {Command}
- * @api public
- */
-
-command.use = function (fn) {
-  return fn(this);
-};
-
-/**
- * Defines a function to validate arguments
- * before action is performed. Arguments
- * are valid if no errors are thrown from
- * the function.
- *
- * @param fn
- * @returns {Command}
- * @api public
- */
-command.validate = function (fn) {
-  var self = this;
-  self._validate = fn;
-  return this;
-};
-
-/**
- * Defines a function to be called when the
- * command is canceled.
- *
- * @param fn
- * @returns {Command}
- * @api public
- */
-command.cancel = function (fn) {
-  this._cancel = fn;
-  return this;
-};
-
-/**
- * Defines a method to be called when
- * the command set has completed.
- *
- * @param {Function} fn
- * @return {Command}
- * @api public
- */
-
-command.done = function (fn) {
-  this._done = fn;
-  return this;
-};
-
-/**
- * Defines tabbed auto-completion
- * for the given command. Favored over
- * deprecated command.autocompletion.
- *
- * @param {Function} fn
- * @return {Command}
- * @api public
- */
-
-command.autocomplete = function (obj) {
-  this._autocomplete = obj;
-  return this;
-};
-
-/**
- * Defines tabbed auto-completion rules
- * for the given command.
- *
- * @param {Function} fn
- * @return {Command}
- * @api public
- */
-
-command.autocompletion = function (param) {
-  this._parent._useDeprecatedAutocompletion = true;
-  if (!_.isFunction(param) && !_.isObject(param)) {
-    throw new Error('An invalid object type was passed into the first parameter of command.autocompletion: function expected.');
+
+    this._init = fn;
+
+    return this;
   }
 
-  this._autocompletion = param;
-  return this;
-};
-
-/**
- * Defines an init action for a mode command.
- *
- * @param {Function} fn
- * @return {Command}
- * @api public
- */
-
-command.init = function (fn) {
-  var self = this;
-  if (self._mode !== true) {
-    throw Error('Cannot call init from a non-mode action.');
+  /**
+   * Defines a prompt delimiter for a
+   * mode once entered.
+   */
+  delimiter(delimiter) {
+    this._delimiter = delimiter;
+
+    return this;
   }
-  self._init = fn;
-  return this;
-};
-
-/**
- * Defines a prompt delimiter for a
- * mode once entered.
- *
- * @param {String} delimiter
- * @return {Command}
- * @api public
- */
-
-command.delimiter = function (delimiter) {
-  this._delimiter = delimiter;
-  return this;
-};
-
-/**
- * Sets args for static typing of options
- * using minimist.
- *
- * @param {Object} types
- * @return {Command}
- * @api public
- */
-
-command.types = function (types) {
-  var supported = ['string', 'boolean'];
-  for (var item in types) {
-    if (supported.indexOf(item) === -1) {
-      throw new Error('An invalid type was passed into command.types(): ' + item);
-    }
-    types[item] = (!_.isArray(types[item])) ? [types[item]] : types[item];
+
+  /**
+   * Sets args for static typing of options
+   * using minimist.
+   */
+  types(types) {
+    const supported = ['string', 'boolean'];
+
+    Object.keys(types).forEach((item) => {
+      if (!supported.includes(item)) {
+        throw new Error(`An invalid type was passed into Command#types(): ${item}`);
+      }
+
+      this._types[item] = Array.isArray(types[item]) ? types[item] : [types[item]];
+    });
+
+    return this;
   }
-  this._types = types;
-  return this;
-};
-
-/**
- * Defines an alias for a given command.
- *
- * @param {String} alias
- * @return {Command}
- * @api public
- */
-
-command.alias = function () {
-  var self = this;
-  for (var i = 0; i < arguments.length; ++i) {
-    var alias = arguments[i];
-    if (_.isArray(alias)) {
-      for (var j = 0; j < alias.length; ++j) {
-        this.alias(alias[j]);
+
+  /**
+   * Defines an alias for a given command.
+   */
+  alias(...aliases) {
+    aliases.forEach((alias) => {
+      if (Array.isArray(alias)) {
+        this.alias(...alias);
+
+        return;
       }
-      return this;
-    }
-    this._parent.commands.forEach(function (cmd) {
-      if (!_.isEmpty(cmd._aliases)) {
-        if (_.includes(cmd._aliases, alias)) {
-          var msg = 'Duplicate alias "' + alias + '" for command "' + self._name + '" detected. Was first reserved by command "' + cmd._name + '".';
-          throw new Error(msg);
+
+      this._parent.commands.forEach((command) => {
+        if (command._aliases.includes(alias)) {
+          throw new Error(
+            `Duplicate alias "${alias}" for command "${this._name}" detected. ` +
+            `Was first reserved by command "${command._name}".`
+          );
         }
-      }
+      });
+
+      this._aliases.push(alias);
     });
-    this._aliases.push(alias);
+
+    return this;
+  }
+
+  /**
+   * Defines description for given command.
+   */
+  description(desc) {
+    if (!desc) {
+      return this._description;
+    }
+
+    this._description = desc;
+
+    return this;
   }
-  return this;
-};
-
-/**
- * Defines description for given command.
- *
- * @param {String} str
- * @return {Command}
- * @api public
- */
-
-command.description = function (str) {
-  if (arguments.length === 0) {
-    return this._description;
+
+  /**
+   * Removes self from Vorpal instance.
+   */
+  remove() {
+    this._parent.commands = this._parent.commands.filter(command => (
+      command._name !== this._name
+    ));
+
+    return this;
   }
-  this._description = str;
-  return this;
-};
-
-/**
- * Removes self from Vorpal instance.
- *
- * @return {Command}
- * @api public
- */
-
-command.remove = function () {
-  var self = this;
-  this._parent.commands = _.reject(this._parent.commands, function (command) {
-    if (command._name === self._name) {
-      return true;
+
+  /**
+   * Returns the commands arguments as string.
+   */
+  arguments(desc) {
+    return this._parseExpectedArgs(desc.split(/ +/));
+  }
+
+  /**
+   * Returns the help info for given command.
+   */
+  helpInformation() {
+    let desc = [];
+    let alias = '';
+
+    if (this._description) {
+      desc = [
+        `  ${this._description}`,
+        '',
+      ];
+    }
+
+    if (this._aliases.length) {
+      alias = `  Alias: ${this._aliases.join(' | ')}\n`;
     }
-  });
-  return this;
-};
-
-/**
- * Returns the commands arguments as string.
- *
- * @param {String} desc
- * @return {String}
- * @api public
- */
-
-command.arguments = function (desc) {
-  return this._parseExpectedArgs(desc.split(/ +/));
-};
-
-/**
- * Returns the help info for given command.
- *
- * @return {String}
- * @api public
- */
-
-command.helpInformation = function () {
-  var desc = [];
-  var cmdName = this._name;
-  var alias = '';
-
-  if (this._description) {
-    desc = [
-      '  ' + this._description,
-      ''
+
+    const usage = [
+      '',
+      `  Usage: ${this._name} ${this.usage()}`,
+      '',
+    ];
+
+    // TODO
+    const cmds = [];
+
+    const help = String(this.optionHelp().replace(/^/gm, '    '));
+    const options = [
+      '  Options:',
+      '',
+      help,
+      '',
     ];
+
+    return usage
+      .concat(cmds)
+      .concat(alias)
+      .concat(desc)
+      .concat(options)
+      .join('\n')
+      .replace(/\n\n\n/g, '\n\n');
   }
 
-  if (this._aliases.length > 0) {
-    alias = '  Alias: ' + this._aliases.join(' | ') + '\n';
+  /**
+   * Doesn't show command in the help menu.
+   */
+  hidden() {
+    this._hidden = true;
+
+    return this;
   }
-  var usage = [
-    '',
-    '  Usage: ' + cmdName + ' ' + this.usage(),
-    ''
-  ];
-
-  var cmds = [];
-
-  var help = String(this.optionHelp().replace(/^/gm, '    '));
-  var options = [
-    '  Options:',
-    '',
-    help,
-    ''
-  ];
-
-  var res = usage
-    .concat(cmds)
-    .concat(alias)
-    .concat(desc)
-    .concat(options)
-    .join('\n');
-
-  res = res.replace(/\n\n\n/g, '\n\n');
-
-  return res;
-};
-
-/**
- * Doesn't show command in the help menu.
- *
- * @return {Command}
- * @api public
- */
-
-command.hidden = function () {
-  this._hidden = true;
-  return this;
-};
-
-/**
- * Allows undeclared options to be passed in with the command.
- *
- * @param {Boolean} [allowUnknownOptions=true]
- * @return {Command}
- * @api public
- */
-
-command.allowUnknownOptions = function (allowUnknownOptions = true) {
-  allowUnknownOptions = allowUnknownOptions === "false" ? false : allowUnknownOptions;
-
-  this._allowUnknownOptions = !!allowUnknownOptions;
-  return this;
-};
-
-/**
- * Returns the command usage string for help.
- *
- * @param {String} str
- * @return {String}
- * @api public
- */
-
-command.usage = function (str) {
-  var args = this._args.map(function (arg) {
-    return VorpalUtil.humanReadableArgName(arg);
-  });
-
-  var usage = '[options]' +
-    (this.commands.length ? ' [command]' : '') +
-    (this._args.length ? ' ' + args.join(' ') : '');
-
-  if (arguments.length === 0) {
-    return (this._usage || usage);
+
+  /**
+   * Allows undeclared options to be passed in with the command.
+   */
+  allowUnknownOptions(allow = true) {
+    this._allowUnknownOptions = allow;
+
+    return this;
   }
 
-  this._usage = str;
-
-  return this;
-};
-
-/**
- * Returns the help string for the command's options.
- *
- * @return {String}
- * @api public
- */
-
-command.optionHelp = function () {
-  var width = this._largestOptionLength();
-
-  // Prepend the help information
-  return [VorpalUtil.pad('--help', width) + '  output usage information']
-    .concat(this.options.map(function (option) {
-      return VorpalUtil.pad(option.flags, width) + '  ' + option.description;
-    }))
-    .join('\n');
-};
-
-/**
- * Returns the length of the longest option.
- *
- * @return {Integer}
- * @api private
- */
-
-command._largestOptionLength = function () {
-  return this.options.reduce(function (max, option) {
-    return Math.max(max, option.flags.length);
-  }, 0);
-};
-
-/**
- * Adds a custom handling for the --help flag.
- *
- * @param {Function} fn
- * @return {Command}
- * @api public
- */
-
-command.help = function (fn) {
-  if (_.isFunction(fn)) {
-    this._help = fn;
+  /**
+   * Returns the command usage string for help.
+   */
+  usage(usage) {
+    if (!usage) {
+      const args = this._args.map(arg => VorpalUtil.humanReadableArgName(arg));
+
+      return this._usage || [
+        '[options]',
+        this.commands.length ? '[command]' : '',
+        this._args.length ? args.join(' ') : '',
+      ].join(' ');
+    }
+
+    this._usage = usage;
+
+    return this;
   }
-  return this;
-};
-
-/**
- * Edits the raw command string before it
- * is executed.
- *
- * @param {String} str
- * @return {String} str
- * @api public
- */
-
-command.parse = function (fn) {
-  if (_.isFunction(fn)) {
-    this._parse = fn;
+
+  /**
+   * Returns the help string for the command's options.
+   */
+  optionHelp() {
+    const width = this._largestOptionLength();
+
+    // Prepend the help information
+    return [`${VorpalUtil.pad('--help', width)}  output usage information`]
+      .concat(this.options.map(option => (
+        `${VorpalUtil.pad(option.flags, width)} ${option.description}`
+      )))
+      .join('\n');
   }
-  return this;
-};
-
-/**
- * Adds a command to be executed after command completion.
- *
- * @param {Function} fn
- * @return {Command}
- * @api public
- */
-
-command.after = function (fn) {
-  if (_.isFunction(fn)) {
-    this._after = fn;
+
+  /**
+   * Returns the length of the longest option.
+   */
+  _largestOptionLength() {
+    return this.options.reduce((max, option) => Math.max(max, option.flags.length), 0);
   }
-  return this;
-};
-
-/**
- * Parses and returns expected command arguments.
- *
- * @param {String} args
- * @return {Array}
- * @api private
- */
-
-command._parseExpectedArgs = function (args) {
-  if (!args.length) {
-    return;
+
+  /**
+   * Adds a custom handling for the --help flag.
+   */
+  help(fn) {
+    if (typeof fn === 'function') {
+      this._help = fn;
+    } else {
+      throw new Error('A function is required for Command#help.');
+    }
+
+    return this;
   }
-  var self = this;
-  args.forEach(function (arg) {
-    var argDetails = {
-      required: false,
-      name: '',
-      variadic: false
-    };
-
-    switch (arg[0]) {
-      case '<':
-        argDetails.required = true;
-        argDetails.name = arg.slice(1, -1);
-        break;
-      case '[':
-        argDetails.name = arg.slice(1, -1);
-        break;
-      default:
-        break;
+
+  /**
+   * Edits the raw command string before it is executed.
+   */
+  parse(fn) {
+    if (typeof fn === 'function') {
+      this._parse = fn;
+    } else {
+      throw new Error('A function is required for Command#parse.');
     }
 
-    if (argDetails.name.length > 3 && argDetails.name.slice(-3) === '...') {
-      argDetails.variadic = true;
-      argDetails.name = argDetails.name.slice(0, -3);
+    return this;
+  }
+
+  /**
+   * Adds a command to be executed after command completion.
+   */
+  after(fn) {
+    if (typeof fn === 'function') {
+      this._after = fn;
+    } else {
+      throw new Error('A function is required for Command#after.');
     }
-    if (argDetails.name) {
-      self._args.push(argDetails);
+
+    return this;
+  }
+
+  /**
+   * Parses and returns expected command arguments.
+   */
+  _parseExpectedArgs(args) {
+    if (!args || !args.length) {
+      return;
     }
-  });
-
-  // If the user entered args in a weird order,
-  // properly sequence them.
-  if (self._args.length > 1) {
-    self._args = self._args.sort(function (argu1, argu2) {
-      if (argu1.required && !argu2.required) {
-        return -1;
-      } else if (argu2.required && !argu1.required) {
-        return 1;
-      } else if (argu1.variadic && !argu2.variadic) {
-        return 1;
-      } else if (argu2.variadic && !argu1.variadic) {
-        return -1;
+
+    args.forEach((arg) => {
+      const argDetails = {
+        name: '',
+        required: false,
+        variadic: false,
+      };
+
+      switch (arg[0]) {
+        case '<':
+          argDetails.required = true;
+          argDetails.name = arg.slice(1, -1);
+          break;
+        case '[':
+          argDetails.name = arg.slice(1, -1);
+          break;
+        default:
+          break;
+      }
+
+      if (
+        argDetails.name.length > VARIADIC_LENGTH &&
+        argDetails.name.slice(-VARIADIC_LENGTH) === '...'
+      ) {
+        argDetails.variadic = true;
+        argDetails.name = argDetails.name.slice(0, -VARIADIC_LENGTH);
+      }
+
+      if (argDetails.name) {
+        this._args.push(argDetails);
       }
-      return 0;
     });
-  }
 
-  return;
-};
-
-/**
- * Converts string to camel case.
- *
- * @param {String} flag
- * @return {String}
- * @api private
- */
-
-function _camelcase(flag) {
-  return flag.split('-').reduce(function (str, word) {
-    return str + word[0].toUpperCase() + word.slice(1);
-  });
-}
+    // If the user entered args in a weird order, properly sequence them
+    if (this._args.length > 1) {
+      this._args = this._args.sort((argu1, argu2) => {
+        if (argu1.required && !argu2.required) {
+          return -1;
+        } else if (argu2.required && !argu1.required) {
+          return 1;
+        } else if (argu1.variadic && !argu2.variadic) {
+          return 1;
+        } else if (argu2.variadic && !argu1.variadic) {
+          return -1;
+        }
 
-/**
- * Make command an EventEmitter.
- */
+        return 0;
+      });
+    }
+  }
+}
 
-command.__proto__ = EventEmitter.prototype;
+module.exports = Command;
diff --git a/lib/helpers/camelCase.js b/lib/helpers/camelCase.js
new file mode 100644
index 00000000..214a15ac
--- /dev/null
+++ b/lib/helpers/camelCase.js
@@ -0,0 +1,5 @@
+function camelCase(string) {
+  return string.split('-').reduce((str, word) => str + word[0].toUpperCase() + word.slice(1));
+}
+
+module.exports = camelCase;
diff --git a/lib/history.js b/lib/history.js
index 0cdb2409..ea10879e 100755
--- a/lib/history.js
+++ b/lib/history.js
@@ -1,190 +1,190 @@
-'use strict';
-
-var _ = require('lodash');
-var LocalStorage = require('node-localstorage').LocalStorage;
-var path = require('path');
+const { LocalStorage } = require('node-localstorage');
+const path = require('path');
 const os = require('os');
 
 // Number of command histories kept in persistent storage
-var HISTORY_SIZE = 500;
+const HISTORY_SIZE = 500;
 
 const temp = path.normalize(path.join(os.tmpdir(), '/.local_storage'));
 const DEFAULT_STORAGE_PATH = temp;
 
-var History = function () {
-  this._storageKey = undefined;
-
-  // Prompt Command History
-  // Histctr moves based on number of times 'up' (+= ctr)
-  //  or 'down' (-= ctr) was pressed in traversing
-  // command history.
-  this._hist = [];
-  this._histCtr = 0;
-
-  // When in a 'mode', we reset the
-  // history and store it in a cache until
-  // exiting the 'mode', at which point we
-  // resume the original history.
-  this._histCache = [];
-  this._histCtrCache = 0;
-};
-
-/**
- * Initialize the history with local storage data
- * Called from setId when history id is set
- */
-
-History.prototype._init = function () {
-  if (!this._storageKey) {
-    return;
+class History {
+  constructor() {
+    this._storageKey = undefined;
+
+    // Prompt Command History
+    // Histctr moves based on number of times 'up' (+= ctr)
+    //  or 'down' (-= ctr) was pressed in traversing
+    // command history.
+    this._hist = [];
+    this._histCtr = 0;
+
+    // When in a 'mode', we reset the
+    // history and store it in a cache until
+    // exiting the 'mode', at which point we
+    // resume the original history.
+    this._histCache = [];
+    this._histCtrCache = 0;
   }
 
-  // Load history from local storage
-  var persistedHistory = JSON.parse(this._localStorage.getItem(this._storageKey));
-  if (_.isArray(persistedHistory)) {
-    Array.prototype.push.apply(this._hist, persistedHistory);
+  /**
+   * Initialize the history with local storage data
+   * Called from setId when history id is set
+   */
+
+  _init() {
+    if (!this._storageKey) {
+      return;
+    }
+
+    // Load history from local storage
+    const persistedHistory = JSON.parse(this._localStorage.getItem(this._storageKey));
+    if (Array.isArray(persistedHistory)) {
+      this._hist.push(...persistedHistory);
+    }
   }
-};
-
-/**
- * Set id for this history instance.
- * Calls init internally to initialize
- * the history with the id.
- */
-
-History.prototype.setId = function (id) {
-  // Initialize a localStorage instance with default
-  // path if it is not initialized
-  if (!this._localStorage) {
-    this._localStorage = new LocalStorage(DEFAULT_STORAGE_PATH);
+
+  /**
+   * Set id for this history instance.
+   * Calls init internally to initialize
+   * the history with the id.
+   */
+
+  setId(id) {
+    // Initialize a localStorage instance with default
+    // path if it is not initialized
+    if (!this._localStorage) {
+      this._localStorage = new LocalStorage(DEFAULT_STORAGE_PATH);
+    }
+    this._storageKey = `cmd_history_${id}`;
+    this._init();
   }
-  this._storageKey = 'cmd_history_' + id;
-  this._init();
-};
-
-/**
- * Initialize a local storage instance with
- * the path if not already initialized.
- *
- * @param path
- */
-
-History.prototype.setStoragePath = function (path) {
-  if (!this._localStorage) {
-    this._localStorage = new LocalStorage(path);
+
+  /**
+   * Initialize a local storage instance with
+   * the path if not already initialized.
+   *
+   * @param path
+   */
+
+  setStoragePath(path) {
+    if (!this._localStorage) {
+      this._localStorage = new LocalStorage(path);
+    }
   }
-};
-
-/**
- * Get previous history. Called when up is pressed.
- *
- * @return {String}
- */
-
-History.prototype.getPreviousHistory = function () {
-  this._histCtr++;
-  this._histCtr = (this._histCtr > this._hist.length) ?
-    this._hist.length :
-    this._histCtr;
-  return this._hist[this._hist.length - (this._histCtr)];
-};
-
-/**
- * Get next history. Called when down is pressed.
- *
- * @return {String}
- */
-
-History.prototype.getNextHistory = function () {
-  this._histCtr--;
-
-  // Return empty prompt if the we dont have any history to show
-  if (this._histCtr < 1) {
-    this._histCtr = 0;
-    return '';
+
+  /**
+   * Get previous history. Called when up is pressed.
+   *
+   * @return {String}
+   */
+
+  getPreviousHistory() {
+    this._histCtr += 1;
+    this._histCtr = (this._histCtr > this._hist.length) ?
+      this._hist.length :
+      this._histCtr;
+
+    return this._hist[this._hist.length - (this._histCtr)];
   }
 
-  return this._hist[this._hist.length - this._histCtr];
-};
-
-/**
- * Peek into history, without changing state
- *
- * @return {String}
- */
-
-History.prototype.peek = function (depth) {
-  depth = depth || 0;
-  return this._hist[this._hist.length - 1 - depth];
-};
-
-/**
- * A new command was submitted. Called when enter is pressed and the prompt is not empty.
- *
- * @param cmd
- */
-
-History.prototype.newCommand = function (cmd) {
-  // Always reset history when new command is executed.
-  this._histCtr = 0;
-
-  // Don't store command in history if it's a duplicate.
-  if (this._hist[this._hist.length - 1] === cmd) {
-    return;
+  /**
+   * Get next history. Called when down is pressed.
+   *
+   * @return {String}
+   */
+
+  getNextHistory() {
+    this._histCtr -= 1;
+
+    // Return empty prompt if the we dont have any history to show
+    if (this._histCtr < 1) {
+      this._histCtr = 0;
+
+      return '';
+    }
+
+    return this._hist[this._hist.length - this._histCtr];
+  }
+
+  /**
+   * Peek into history, without changing state
+   *
+   * @return {String}
+   */
+
+  peek(depth = 0) {
+    return this._hist[this._hist.length - 1 - depth];
   }
 
-  // Push into history.
-  this._hist.push(cmd);
+  /**
+   * A new command was submitted. Called when enter is pressed and the prompt is not empty.
+   *
+   * @param cmd
+   */
 
-  // Only persist history when not in mode
-  if (this._storageKey && !this._inMode) {
-    var persistedHistory = this._hist;
-    var historyLen = this._hist.length;
-    if (historyLen > HISTORY_SIZE) {
-      persistedHistory = this._hist.slice(historyLen - HISTORY_SIZE - 1, historyLen - 1);
+  newCommand(cmd) {
+    // Always reset history when new command is executed.
+    this._histCtr = 0;
+
+    // Don't store command in history if it's a duplicate.
+    if (this._hist[this._hist.length - 1] === cmd) {
+      return;
     }
 
-    // Add to local storage
-    this._localStorage.setItem(this._storageKey, JSON.stringify(persistedHistory));
+    // Push into history.
+    this._hist.push(cmd);
+
+    // Only persist history when not in mode
+    if (this._storageKey && !this._inMode) {
+      let persistedHistory = this._hist;
+      const historyLen = this._hist.length;
+      if (historyLen > HISTORY_SIZE) {
+        persistedHistory = this._hist.slice(historyLen - HISTORY_SIZE - 1, historyLen - 1);
+      }
+
+      // Add to local storage
+      this._localStorage.setItem(this._storageKey, JSON.stringify(persistedHistory));
+    }
   }
-};
-
-/**
- * Called when entering a mode
- */
-
-History.prototype.enterMode = function () {
-  // Reassign the command history to a
-  // cache, replacing it with a blank
-  // history for the mode.
-  this._histCache = _.clone(this._hist);
-  this._histCtrCache = parseFloat(this._histCtr);
-  this._hist = [];
-  this._histCtr = 0;
-  this._inMode = true;
-};
-
-/**
- * Called when exiting a mode
- */
-
-History.prototype.exitMode = function () {
-  this._hist = this._histCache;
-  this._histCtr = this._histCtrCache;
-  this._histCache = [];
-  this._histCtrCache = 0;
-  this._inMode = false;
-};
-
-/**
- * Clears the command history
- * (Currently only used in unit test)
- */
-
-History.prototype.clear = function () {
-  if (this._storageKey) {
-    this._localStorage.removeItem(this._storageKey);
+
+  /**
+   * Called when entering a mode
+   */
+
+  enterMode() {
+    // Reassign the command history to a
+    // cache, replacing it with a blank
+    // history for the mode.
+    this._histCache = [...this._hist];
+    this._histCtrCache = parseFloat(this._histCtr);
+    this._hist = [];
+    this._histCtr = 0;
+    this._inMode = true;
+  }
+
+  /**
+   * Called when exiting a mode
+   */
+
+  exitMode() {
+    this._hist = this._histCache;
+    this._histCtr = this._histCtrCache;
+    this._histCache = [];
+    this._histCtrCache = 0;
+    this._inMode = false;
+  }
+
+  /**
+   * Clears the command history
+   * (Currently only used in unit test)
+   */
+
+  clear() {
+    if (this._storageKey) {
+      this._localStorage.removeItem(this._storageKey);
+    }
   }
-};
+}
 
 module.exports = History;
diff --git a/lib/option.js b/lib/option.js
index 3ef05aa1..f8710b71 100755
--- a/lib/option.js
+++ b/lib/option.js
@@ -12,12 +12,17 @@ class Option {
    * @api public
    */
 
-  constructor(flags, description, autocomplete) {
+  constructor(flags, description, options = {}) {
+    options = typeof options === 'object' ? options : {
+      autocomplete: options
+    };
+
+    this.autocomplete = options.autocomplete;
+    this._default = options.default ? options.default : null;
     this.flags = flags;
     this.required = ~flags.indexOf('<');
     this.optional = ~flags.indexOf('[');
     this.bool = !~flags.indexOf('-no-');
-    this.autocomplete = autocomplete;
     flags = flags.split(/[ ,|]+/);
     if (flags.length > 1 && !/^[[<]/.test(flags[1])) {
       this.assignFlag(flags.shift());
@@ -69,6 +74,10 @@ class Option {
       this.short = flag;
     }
   }
+
+  default() {
+    return this._default;
+  }
 }
 
 /**
diff --git a/lib/session.js b/lib/session.js
index 058deb3c..1222bfdd 100755
--- a/lib/session.js
+++ b/lib/session.js
@@ -1,4 +1,4 @@
-'use strict';
+const CommandInstance = require('./command-instance');
 
 /**
  * Module dependencies.
@@ -9,7 +9,7 @@ var os = require('os');
 var _ = require('lodash');
 var util = require('./util');
 var autocomplete = require('./autocomplete');
-var CommandInstance = require('./command-instance');
+
 
 /**
  * Initialize a new `Session` instance.
diff --git a/lib/ui.js b/lib/ui.js
index 4f2721bc..1c7d2e59 100755
--- a/lib/ui.js
+++ b/lib/ui.js
@@ -1,30 +1,22 @@
-'use strict';
+/* eslint-disable no-console, no-param-reassign */
 
-/**
- * Module dependencies.
- */
-
-const _ = require('lodash');
-const inquirer = require('inquirer');
-const EventEmitter = require('events').EventEmitter;
+const { EventEmitter } = require('events');
 const chalk = require('chalk');
-const util = require('./util');
+const inquirer = require('inquirer');
 const logUpdate = require('log-update');
+const util = require('./util');
 
-class UI extends EventEmitter {
+const INQUIRER_PROMPTS = ['input', 'checkbox', 'confirm', 'expand', 'list', 'password', 'rawlist'];
 
+class UI extends EventEmitter {
   /**
    * Sets intial variables and registers
    * listeners. This is called once in a
    * process thread regardless of how many
    * instances of Vorpal have been generated.
-   *
-   * @api private
    */
-
   constructor() {
     super();
-    const self = this;
 
     // Attached vorpal instance. The UI can
     // only attach to one instance of Vorpal
@@ -58,38 +50,44 @@ class UI extends EventEmitter {
       if (this._sigintCount > 1) {
         this.parent.emit('vorpal_exit');
         process.exit(0);
+      }
+
+      // If Vorpal isn't shown, just exit.
+      if (!this.parent) {
+        process.exit(0);
+      }
+
+      const text = this.input();
+
+      // There are commands running if cancelCommands function is available.
+      if (this.parent.session.cancelCommands) {
+        this.imprint();
+        this.submit('');
+        this._sigintCalled = false;
+        this._sigintCount = 0;
+        this.parent.session.emit('vorpal_command_cancel');
+
+      } else if (String(text).trim()) {
+        this.imprint();
+        this.submit('');
+        this._sigintCalled = false;
+        this._sigintCount = 0;
+
       } else {
-        const text = this.input();
-        if (!this.parent) {
-          // If Vorpal isn't shown, just exit.
-          process.exit(0);
-        } else if (this.parent.session.cancelCommands) {
-          // There are commands running if
-          // cancelCommands function is available.
-          this.imprint();
-          this.submit('');
-          this._sigintCalled = false;
-          this._sigintCount = 0;
-          this.parent.session.emit('vorpal_command_cancel');
-        } else if (String(text).trim() !== '') {
-          this.imprint();
-          this.submit('');
-          this._sigintCalled = false;
-          this._sigintCount = 0;
-        } else {
-          this._sigintCalled = false;
-          this.delimiter(' ');
-          this.submit('');
-          this.log('(^C again to quit)');
-        }
+        this._sigintCalled = false;
+        this.delimiter(' ');
+        this.submit('');
+        this.log('(^C again to quit)');
       }
     };
 
-    process.stdin.on('keypress', (letter, key) => {
-      key = key || {};
-      if (key.ctrl === true && key.shift === false && key.meta === false && ['c', 'C'].indexOf(key.name) > -1) {
-        this._sigintCount++;
-        if (this._sigint !== undefined && !this._sigintCalled) {
+    const self = this;
+
+    process.stdin.on('keypress', (letter, key = {}) => {
+      if (key.ctrl && !key.shift && !key.meta && ['c', 'C'].indexOf(key.name) > -1) {
+        this._sigintCount += 1;
+
+        if (this._sigint && !this._sigintCalled) {
           this._sigintCalled = true;
           this._sigint.call(self.parent);
           this._sigintCalled = false;
@@ -102,18 +100,14 @@ class UI extends EventEmitter {
 
     // Extend the render function to steal the active prompt object,
     // as inquirer doesn't expose it and we need it.
-    const prompts = ['input', 'checkbox', 'confirm', 'expand', 'list', 'password', 'rawlist'];
-
-    for (const key in prompts) {
-      const promptType = prompts[key];
-
+    INQUIRER_PROMPTS.forEach((promptType) => {
       // Add method to Inquirer to get type of prompt.
-      inquirer.prompt.prompts[promptType].prototype.getType = function () {
+      inquirer.prompt.prompts[promptType].prototype.getType = function getType() {
         return promptType;
       };
 
       // Hook in to steal Inquirer's keypress.
-      inquirer.prompt.prompts[promptType].prototype.onKeypress = function (e) {
+      inquirer.prompt.prompts[promptType].prototype.onKeypress = function onKeypress(e) {
         // Inquirer seems to have a bug with release v0.10.1
         // (not 0.10.0 though) that triggers keypresses for
         // the previous prompt in addition to the current one.
@@ -121,130 +115,124 @@ class UI extends EventEmitter {
         if (this.status && this.status === 'answered') {
           return;
         }
+
         self._activePrompt = this;
         self.parent.emit('client_keypress', e);
         self._keypressHandler(e, this);
       };
 
-      // Add hook to render method.
-      const render = inquirer.prompt.prompts[promptType].prototype.render;
-      inquirer.prompt.prompts[promptType].prototype.render = function () {
+      // Add hook to render method
+      const baseRender = inquirer.prompt.prompts[promptType].prototype.render;
+
+      inquirer.prompt.prompts[promptType].prototype.render = function render(...args) {
         self._activePrompt = this;
-        return render.apply(this, arguments);
+
+        return baseRender.apply(this, args);
       };
-    }
+    });
 
-    // Sigint handling - make it more graceful.
+    // Sigint handling - make it more graceful
     const onSigInt = () => {
-      if (_.isFunction(this._sigint) && !this._sigintCalled) {
+      if (typeof this._sigint === 'function' && !this._sigintCalled) {
         this._sigintCalled = true;
         this._sigint.call(this.parent);
       }
     };
+
     process.on('SIGINT', onSigInt);
     process.on('SIGTERM', onSigInt);
   }
 
   /**
    * Hook for sigint event.
-   *
-   * @param {Object} options
-   * @param {Function} cb
-   * @api public
    */
-
   sigint(fn) {
-    if (_.isFunction(fn)) {
+    if (typeof fn === 'function') {
       this._sigint = fn;
     } else {
-      throw new Error('vorpal.ui.sigint must be passed in a valid function.');
+      throw new Error('UI#sigint must be passed a valid function.');
     }
+
     return this;
   }
 
   /**
    * Creates an inquirer prompt on the TTY.
-   *
-   * @param {Object} options
-   * @param {Function} cb
-   * @api public
    */
-
-  prompt(options, cb) {
+  prompt(options = {}, cb = null) {
     let prompt;
-    options = options || {};
+
     if (!this.parent) {
       return prompt;
     }
+
     if (options.delimiter) {
       this.setDelimiter(options.delimiter);
     }
+
     if (options.message) {
       this.setDelimiter(options.message);
     }
+
     if (this._midPrompt) {
-      console.log('Prompt called when mid prompt...');
-      throw new Error('UI Prompt called when already mid prompt.');
+      throw new Error('UI prompt called when already in a prompt.');
     }
+
     this._midPrompt = true;
+
     try {
-      prompt = inquirer.prompt(options, (result) => {
+      prompt = inquirer.prompt(options).then((result) => {
         this.inquirerStdout = [];
         this._midPrompt = false;
-        if (this._cancel === true) {
+
+        if (this._cancel) {
           this._cancel = false;
         } else {
           cb(result);
         }
       });
-
-      // Temporary hack. We need to pull the active
-      // prompt from inquirer as soon as possible,
-      // however we can't just assign it sync, as
-      // the prompt isn't ready yet.
-      // I am trying to get inquirer extended to
-      // fire an event instead.
-      setTimeout(() => {
-        // this._activePrompt = prompt._activePrompt;
-      }, 100);
     } catch (e) {
-      console.log('Vorpal Prompt error:', e);
+      console.log('Vorpal prompt error:', e);
     }
+
     return prompt;
   }
 
   /**
    * Returns a boolean as to whether user
-   * is mid another pr ompt.
-   *
-   * @return {Boolean}
-   * @api public
+   * is mid another prompt.
    */
-
   midPrompt() {
-    const mid = (this._midPrompt === true && this.parent !== undefined);
-    return mid;
+    return (this._midPrompt && this.parent);
   }
 
-  setDelimiter(str) {
-    const self = this;
+  setDelimiter(value) {
     if (!this.parent) {
       return;
     }
-    str = String(str).trim() + ' ';
-    this._lastDelimiter = str;
-    inquirer.prompt.prompts.password.prototype.getQuestion = function () {
+
+    const self = this;
+    const delimiter = String(value).trim();
+
+    this._lastDelimiter = `${delimiter} `;
+
+    inquirer.prompt.prompts.password.prototype.getQuestion = function getPasswordQuestion() {
       self._activePrompt = this;
+
       return this.opt.message;
     };
-    inquirer.prompt.prompts.input.prototype.getQuestion = function () {
+
+    inquirer.prompt.prompts.input.prototype.getQuestion = function getInputQuestion() {
       self._activePrompt = this;
-      let message = this.opt.message;
-      if ((this.opt.default || this.opt.default === false)
-        && this.status !== 'answered') {
-        message += chalk.dim('(' + this.opt.default + ') ');
+
+      let { message } = this.opt;
+
+      if ((this.opt.default || this.opt.default === false) && this.status !== 'answered') {
+        message += chalk.dim(`(${this.opt.default}) `);
       }
+
       self.inquirerStdout.push(message);
+
       return message;
     };
   }
@@ -252,65 +240,63 @@ class UI extends EventEmitter {
   /**
    * Event handler for keypresses - deals with command history
    * and tabbed auto-completion.
-   *
-   * @param {Event} e
-   * @param {Prompt} prompt
-   * @api private
    */
-
   _keypressHandler(e, prompt) {
-    // Remove tab characters from user input.
+    // Remove tab characters from user input
     prompt.rl.line = prompt.rl.line.replace(/\t+/, '');
 
-    // Mask passwords.
-    const line = prompt.getType() !== 'password' ?
-      prompt.rl.line :
-      '*'.repeat(prompt.rl.line.length);
+    // Mask passwords
+    const line = (prompt.getType() === 'password')
+      ? '*'.repeat(prompt.rl.line.length)
+      : prompt.rl.line;
 
-    // Re-write render function.
+    // Re-write render function
     const width = prompt.rl.line.length;
     const newWidth = prompt.rl.line.length;
     const diff = newWidth - width;
+
     prompt.rl.cursor += diff;
-    const cursor = 0;
-    let message = prompt.getQuestion();
-    const addition = (prompt.status === 'answered') ?
+
+    const message = prompt.getQuestion() + (prompt.status === 'answered') ?
       chalk.cyan(prompt.answer) :
       line;
-    message += addition;
-    prompt.screen.render(message, {cursor: cursor});
+
+    prompt.screen.render(message);
 
     const key = (e.key || {}).name;
-    const value = (prompt) ? String(line) : undefined;
-    this.emit('vorpal_ui_keypress', {key: key, value: value, e: e});
+    const value = prompt ? String(line) : undefined;
+
+    this.emit('vorpal_ui_keypress', { key, value, e });
   }
 
   /**
    * Pauses active prompt, returning
    * the value of what had been typed so far.
-   *
-   * @return {String} val
-   * @api public
    */
-
   pause() {
     if (!this.parent) {
       return false;
     }
+
     if (!this._activePrompt) {
       return false;
     }
+
     if (!this._midPrompt) {
       return false;
     }
-    const val = this._lastDelimiter + this._activePrompt.rl.line;
+
+    const value = this._lastDelimiter + this._activePrompt.rl.line;
+
     this._midPrompt = false;
-    const rl = this._activePrompt.screen.rl;
-    const screen = this._activePrompt.screen;
-    rl.output.unmute();
+
+    const { screen } = this._activePrompt.screen;
+
+    screen.rl.output.unmute();
     screen.clean();
-    rl.output.write('');
-    return val;
+    screen.rl.output.write('');
+
+    return value;
   }
 
   /**
@@ -318,71 +304,60 @@ class UI extends EventEmitter {
    * a string, which will fill the prompt
    * with that text and put the cursor at
    * the end.
-   *
-   * @param {String} val
-   * @api public
    */
-
   resume(val) {
     if (!this.parent) {
       return this;
     }
-    val = val || '';
+
     if (!this._activePrompt) {
       return this;
     }
+
     if (this._midPrompt) {
       return this;
     }
-    const rl = this._activePrompt.screen.rl;
-    rl.output.write(val);
+
+    this._activePrompt.screen.rl.output.write(val || '');
     this._midPrompt = true;
+
     return this;
   }
 
   /**
    * Cancels the active prompt, essentially
    * but cutting out of the inquirer loop.
-   *
-   * @api public
    */
-
   cancel() {
     if (this.midPrompt()) {
       this._cancel = true;
       this.submit('');
       this._midPrompt = false;
     }
+
     return this;
   }
 
   /**
    * Attaches TTY prompt to a given Vorpal instance.
-   *
-   * @param {Vorpal} vorpal
-   * @return {UI}
-   * @api public
    */
-
   attach(vorpal) {
     this.parent = vorpal;
     this.refresh();
     this.parent._prompt();
+
     return this;
   }
 
   /**
    * Detaches UI from a given Vorpal instance.
-   *
-   * @param {Vorpal} vorpal
-   * @return {UI}
-   * @api public
    */
 
   detach(vorpal) {
     if (vorpal === this.parent) {
-      this.parent = undefined;
+      this.parent = null;
     }
+
     return this;
   }
 
@@ -392,42 +367,36 @@ class UI extends EventEmitter {
    * through ui.pipe(). Pauses any active
    * prompts, logs the data and then if
    * paused, resumes the prompt.
-   *
-   * @return {UI}
-   * @api public
    */
+  log(...params) {
+    let args = util.fixArgsForApply(params);
+
+    args = (typeof this._pipeFn === 'function')
+      ? this._pipeFn(args)
+      : args;
 
-  log() {
-    let args = util.fixArgsForApply(arguments);
-    args = (_.isFunction(this._pipeFn)) ?
-      this._pipeFn(args) :
-      args;
     if (args === '') {
       return this;
     }
+
     args = util.fixArgsForApply(args);
+
     if (this.midPrompt()) {
       const data = this.pause();
-      console.log.apply(console.log, args);
-      if (typeof data !== 'undefined' && data !== false) {
+
+      if (data) {
         this.resume(data);
       } else {
         console.log('Log got back \'false\' as data. This shouldn\'t happen.', data);
       }
-    } else {
-      console.log.apply(console.log, args);
     }
+
     return this;
   }
 
   /**
    * Submits a given prompt.
-   *
-   * @param {String} value
-   * @return {UI}
-   * @api public
    */
-
   submit() {
     if (this._activePrompt) {
       // this._activePrompt.screen.onClose();
@@ -435,28 +404,28 @@ class UI extends EventEmitter {
       // this._activePrompt.onEnd({isValid: true, value: value});
       // to do - I don't know a good way to do this.
     }
+
     return this;
   }
 
   /**
    * Does a literal, one-time write to the
    * *current* prompt delimiter.
-   *
-   * @param {String} str
-   * @return {UI}
-   * @api public
    */
-
-  delimiter(str) {
+  delimiter(delimiter) {
     if (!this._activePrompt) {
       return this;
     }
+
     const prompt = this._activePrompt;
-    if (str === undefined) {
+
+    if (!delimiter) {
       return prompt.opt.message;
     }
-    prompt.opt.message = str;
+
+    prompt.opt.message = delimiter;
     this.refresh();
+
     return this;
   }
 
@@ -464,115 +433,97 @@ class UI extends EventEmitter {
    * Re-writes the input of an Inquirer prompt.
    * If no string is passed, it gets the current
    * input.
-   *
-   * @param {String} str
-   * @return {String}
-   * @api public
    */
-
-  input(str) {
+  input(input) {
     if (!this._activePrompt) {
-      return undefined;
+      return '';
     }
+
     const prompt = this._activePrompt;
-    if (str === undefined) {
+
+    if (!input) {
       return prompt.rl.line;
     }
+
     const width = prompt.rl.line.length;
-    prompt.rl.line = str;
+
+    prompt.rl.line = input;
+
     const newWidth = prompt.rl.line.length;
     const diff = newWidth - width;
+
     prompt.rl.cursor += diff;
-    const cursor = 0;
-    let message = prompt.getQuestion();
-    const addition = (prompt.status === 'answered') ?
-      chalk.cyan(prompt.answer) :
-      prompt.rl.line;
-    message += addition;
-    prompt.screen.render(message, {cursor: cursor});
+
+    const message = prompt.getQuestion() + (prompt.status === 'answered')
+      ? chalk.cyan(prompt.answer)
+      : prompt.rl.line;
+
+    prompt.screen.render(message);
+
     return this;
   }
 
   /**
    * Logs the current delimiter and typed data.
-   *
-   * @return {UI}
-   * @api public
    */
-
   imprint() {
     if (!this.parent) {
       return this;
     }
-    const val = this._activePrompt.rl.line;
+
     const delimiter = this._lastDelimiter || this.delimiter() || '';
-    this.log(delimiter + val);
+
+    this.log(delimiter + this._activePrompt.rl.line);
+
     return this;
   }
 
   /**
    * Redraws the inquirer prompt with a new string.
-   *
-   * @param {String} str
-   * @return {UI}
-   * @api private
    */
-
   refresh() {
     if (!this.parent || !this._activePrompt) {
       return this;
     }
+
     this._activePrompt.screen.clean();
     this._activePrompt.render();
     this._activePrompt.rl.output.write(this._activePrompt.rl.line);
+
     return this;
   }
 
   /**
    * Writes over existing logging.
-   *
-   * @param {String} str
-   * @return {UI}
-   * @api public
    */
+  redraw(output) {
+    logUpdate(output);
 
-  redraw(str) {
-    logUpdate(str);
     return this;
   }
-
 }
 
 /**
  * Initialize singleton.
  */
-
 const ui = new UI();
 
 /**
- * Clears logging from `ui.redraw`
- * permanently.
- *
- * @return {UI}
- * @api public
+ * Clears logging from `ui.redraw` permanently.
  */
-
-ui.redraw.clear = function () {
+ui.redraw.clear = function clear() {
   logUpdate.clear();
+
   return ui;
 };
 
 /**
- * Prints logging from `ui.redraw`
- * permanently.
- *
- * @return {UI}
- * @api public
+ * Prints logging from `ui.redraw` permanently.
  */
-
-ui.redraw.done = function () {
+ui.redraw.done = function done() {
   logUpdate.done();
   ui.refresh();
+
   return ui;
 };
 
@@ -594,16 +545,19 @@ ui.redraw.done = function () {
  * total mess. So forgive me.
  */
 
-global.__vorpal = global.__vorpal || {};
-global.__vorpal.ui = global.__vorpal.ui || {
-  exists: false,
-  exports: undefined
-};
-
-if (!global.__vorpal.ui.exists) {
-  global.__vorpal.ui.exists = true;
-  global.__vorpal.ui.exports = ui;
-  module.exports = exports = global.__vorpal.ui.exports;
-} else {
-  module.exports = global.__vorpal.ui.exports;
-}
+// TODO investigate
+// global.__vorpal = global.__vorpal || {};
+// global.__vorpal.ui = global.__vorpal.ui || {
+//   exists: false,
+//   exports: undefined
+// };
+//
+// if (!global.__vorpal.ui.exists) {
+//   global.__vorpal.ui.exists = true;
+//   global.__vorpal.ui.exports = ui;
+//   module.exports = exports = global.__vorpal.ui.exports;
+// } else {
+//   module.exports = global.__vorpal.ui.exports;
+// }
+
+module.exports = ui;
diff --git a/lib/util.js b/lib/util.js
index e16fb4e9..ccae8b9f 100755
--- a/lib/util.js
+++ b/lib/util.js
@@ -119,12 +119,14 @@ const util = {
       parseMatch();
     }
 
-    return ({
+    const result = {
       command: command,
       match: match,
       matchArgs: matchArgs,
       pipes: pipes
-    });
+    };
+    console.log({result})
+    return result;
   },
 
   /**
@@ -293,11 +295,15 @@ const util = {
       let exist = (parsedArgs[short] !== undefined) ? parsedArgs[short] : undefined;
       exist = (exist === undefined && parsedArgs[long] !== undefined) ? parsedArgs[long] : exist;
       const existsNotSet = (exist === true || exist === false);
-      if (existsNotSet && o.required !== 0) {
+      const defaultValue = o.default();
+
+      if (existsNotSet && o.required !== 0 && ! defaultValue) {
         return `\n  Missing required value for option ${(o.long || o.short)}. Showing Help:`;
       }
       if (exist !== undefined) {
         args.options[long || short] = exist;
+      } else if (defaultValue) {
+        args.options[long || short] = defaultValue;
       }
     }
 
diff --git a/lib/vorpal.js b/lib/vorpal.js
index f4a08819..f1510407 100755
--- a/lib/vorpal.js
+++ b/lib/vorpal.js
@@ -1,15 +1,4 @@
-'use strict';
-
-/**
- * Polyfill for ES6.
- */
-
-if (!global._babelPolyfill) {
-  // When the runtime transformer properly detects all shimmed methods, use instead.
-  // http://www.2ality.com/2015/12/babel6-helpersstandard-library.html#babel-plugin-transform-runtime
-  require('babel-polyfill');
-}
-
+const CommandInstance = require('./command-instance');
 /**
  * Module dependencies.
  */
@@ -17,7 +6,6 @@ if (!global._babelPolyfill) {
 var _ = require('lodash');
 var EventEmitter = require('events').EventEmitter;
 var Command = require('./command');
-var CommandInstance = require('./command-instance');
 var VorpalUtil = require('./util');
 var ui = require('./ui');
 var Session = require('./session');
diff --git a/package-lock.json b/package-lock.json
new file mode 100644
index 00000000..4df698c1
--- /dev/null
+++ b/package-lock.json
@@ -0,0 +1,5015 @@
+{
+  "name": "vorpal",
+  "version": "1.11.4",
+  "lockfileVersion": 1,
+  "dependencies": {
+    "@milesj/build-tool-config": {
+      "version": "0.7.2",
+      "resolved": "https://registry.npmjs.org/@milesj/build-tool-config/-/build-tool-config-0.7.2.tgz",
+      "integrity": "sha1-jNIr/ll+p8pXurYq3O7oOc9qkOU=",
+      "dev": true
+    },
+    "abab": {
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/abab/-/abab-1.0.3.tgz",
+      "integrity": "sha1-uB3l9ydOxOdW15fNg08wNkJyTl0=",
+      "dev": true
+    },
+    "acorn": {
+      "version": "5.0.3",
+      "resolved": "https://registry.npmjs.org/acorn/-/acorn-5.0.3.tgz",
+      "integrity": "sha1-xGDfCEkUY/AozLguqzcwvwEIez0=",
+      "dev": true
+    },
+    "acorn-globals": {
+      "version": "3.1.0",
+      "resolved": "https://registry.npmjs.org/acorn-globals/-/acorn-globals-3.1.0.tgz",
+      "integrity": "sha1-/YJw9x+7SZawBPqIDuXUZXOnMb8=",
+      "dev": true,
+      "dependencies": {
+        "acorn": {
+          "version": "4.0.13",
+          "resolved": "https://registry.npmjs.org/acorn/-/acorn-4.0.13.tgz",
+          "integrity": "sha1-EFSVrlNh1pe9GVyCUZLhrX8lN4c=",
+          "dev": true
+        }
+      }
+    },
+    "acorn-jsx": {
+      "version": "3.0.1",
+      "resolved": "https://registry.npmjs.org/acorn-jsx/-/acorn-jsx-3.0.1.tgz",
+      "integrity": "sha1-r9+UiPsezvyDSPb7IvRk4ypYs2s=",
+      "dev": true,
+      "dependencies": {
+        "acorn": {
+          "version": "3.3.0",
+          "resolved": "https://registry.npmjs.org/acorn/-/acorn-3.3.0.tgz",
+          "integrity": "sha1-ReN/s56No/JbruP/U2niu18iAXo=",
+          "dev": true
+        }
+      }
+    },
+    "ajv": {
+      "version": "4.11.8",
+      "resolved": "https://registry.npmjs.org/ajv/-/ajv-4.11.8.tgz",
+      "integrity": "sha1-gv+wKynmYq5TvcIK8VlHcGc5xTY=",
+      "dev": true
+    },
+    "ajv-keywords": {
+      "version": "1.5.1",
+      "resolved": "https://registry.npmjs.org/ajv-keywords/-/ajv-keywords-1.5.1.tgz",
+      "integrity": "sha1-MU3QpLM2j609/NxU7eYXG4htrzw=",
+      "dev": true
+    },
+    "align-text": {
+      "version": "0.1.4",
+      "resolved": "https://registry.npmjs.org/align-text/-/align-text-0.1.4.tgz",
+      "integrity": "sha1-DNkKVhCT810KmSVsIrcGlDP60Rc=",
+      "dev": true
+    },
+    "amdefine": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/amdefine/-/amdefine-1.0.1.tgz",
+      "integrity": "sha1-SlKCrBZHKek2Gbz9OtFR+BfOkfU=",
+      "dev": true
+    },
+    "ansi-escapes": {
+      "version": "1.4.0",
+      "resolved": "https://registry.npmjs.org/ansi-escapes/-/ansi-escapes-1.4.0.tgz",
+      "integrity": "sha1-06ioOzGapneTZisT52HHkRQiMG4="
+    },
+    "ansi-green": {
+      "version": "0.1.1",
+      "resolved": "https://registry.npmjs.org/ansi-green/-/ansi-green-0.1.1.tgz",
+      "integrity": "sha1-il2al55FjVfEDjNYCzc5C44Q0Pc=",
+      "dev": true
+    },
+    "ansi-regex": {
+      "version": "2.1.1",
+      "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-2.1.1.tgz",
+      "integrity": "sha1-w7M6te42DYbg5ijwRorn7yfWVN8="
+    },
+    "ansi-styles": {
+      "version": "2.2.1",
+      "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-2.2.1.tgz",
+      "integrity": "sha1-tDLdM1i2NM914eRmQ2gkBTPB3b4="
+    },
+    "ansi-wrap": {
+      "version": "0.1.0",
+      "resolved": "https://registry.npmjs.org/ansi-wrap/-/ansi-wrap-0.1.0.tgz",
+      "integrity": "sha1-qCJQ3bABXponyoLoLqYDu/pF768=",
+      "dev": true
+    },
+    "anymatch": {
+      "version": "1.3.0",
+      "resolved": "https://registry.npmjs.org/anymatch/-/anymatch-1.3.0.tgz",
+      "integrity": "sha1-o+Uvo5FoyCX/V7AkgSbOWo/5VQc=",
+      "dev": true
+    },
+    "append-transform": {
+      "version": "0.4.0",
+      "resolved": "https://registry.npmjs.org/append-transform/-/append-transform-0.4.0.tgz",
+      "integrity": "sha1-126/jKlNJ24keja61EpLdKthGZE=",
+      "dev": true
+    },
+    "argparse": {
+      "version": "1.0.9",
+      "resolved": "https://registry.npmjs.org/argparse/-/argparse-1.0.9.tgz",
+      "integrity": "sha1-c9g7wmP4bpf4zE9rrhsOkKfSLIY=",
+      "dev": true
+    },
+    "aria-query": {
+      "version": "0.5.0",
+      "resolved": "https://registry.npmjs.org/aria-query/-/aria-query-0.5.0.tgz",
+      "integrity": "sha1-heMVLNjMW6sY2+1hzZxPzlT6ecM=",
+      "dev": true
+    },
+    "arr-diff": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/arr-diff/-/arr-diff-2.0.0.tgz",
+      "integrity": "sha1-jzuCf5Vai9ZpaX5KQlasPOrjVs8=",
+      "dev": true
+    },
+    "arr-flatten": {
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/arr-flatten/-/arr-flatten-1.0.3.tgz",
+      "integrity": "sha1-onTthawIhJtr14R8RYB0XcUa37E=",
+      "dev": true
+    },
+    "arr-union": {
+      "version": "3.1.0",
+      "resolved": "https://registry.npmjs.org/arr-union/-/arr-union-3.1.0.tgz",
+      "integrity": "sha1-45sJrqne+Gao8gbiiK9jkZuuOcQ=",
+      "dev": true
+    },
+    "array-equal": {
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+}
diff --git a/package.json b/package.json
index 6f87ab35..f8ecdf34 100644
--- a/package.json
+++ b/package.json
@@ -2,10 +2,11 @@
   "name": "vorpal",
   "version": "1.11.4",
   "description": "Node's first framework for building immersive CLI apps.",
-  "main": "./dist/vorpal.js",
+  "main": "./lib/vorpal.js",
   "scripts": {
-    "test": "gulp build; mocha;",
-    "prepublish": "in-publish && gulp build || not-in-publish"
+    "lint": "run-linter ./lib",
+    "lint:only": "run-linter",
+    "test": "mocha"
   },
   "repository": {
     "type": "git",
@@ -33,57 +34,42 @@
   },
   "homepage": "https://github.com/dthree/vorpal#readme",
   "devDependencies": {
-    "babel": "^6.3.26",
-    "babel-core": "^6.4.5",
-    "babel-preset-es2015": "^6.3.13",
-    "bluebird": "^3.1.1",
-    "gulp": "^3.9.0",
-    "gulp-babel": "^6.1.2",
-    "gulp-changed": "^1.3.0",
-    "gulp-eslint": "^1.1.1",
-    "gulp-xo": "^0.7.0",
-    "load-plugins": "^2.1.0",
-    "mocha": "^2.2.5",
-    "moment": "^2.10.3",
-    "request": "^2.58.0",
-    "should": "^6.0.3",
-    "vorpal-less": "0.0.4",
-    "vorpal-repl": "^1.1.8",
-    "xo": "^0.9.0"
+    "@milesj/build-tool-config": "^0.7.1",
+    "bluebird": "^3.5.0",
+    "mocha": "^3.4.2",
+    "should": "^11.2.1",
+    "vorpal-less": "^0.0.13",
+    "vorpal-repl": "^1.1.8"
   },
   "dependencies": {
-    "babel-polyfill": "^6.3.14",
+    "bash-parser": "^0.4.0",
     "chalk": "^1.1.0",
-    "in-publish": "^2.0.0",
-    "inquirer": "0.11.0",
-    "lodash": "^4.5.1",
-    "log-update": "^1.0.2",
+    "inquirer": "^3.0.6",
+    "lodash": "^4.17.0",
+    "log-update": "^2.0.0",
     "minimist": "^1.2.0",
-    "node-localstorage": "^0.6.0",
+    "node-localstorage": "^1.3.0",
     "strip-ansi": "^3.0.0",
-    "wrap-ansi": "^2.0.0"
+    "wrap-ansi": "^2.1.0"
   },
   "engines": {
-    "node": ">= 0.10.0",
-    "iojs": ">= 1.0.0"
+    "node": ">=6.10.0",
+    "npm": ">=3.10.0"
   },
-  "xo": {
-    "space": true,
+  "eslintConfig": {
+    "extends": "./node_modules/@milesj/build-tool-config/eslint.node.json5",
     "rules": {
-      "no-eval": 0,
-      "no-unused-expressions": 0,
-      "max-nested-callbacks": 0,
-      "no-proto": 0,
-      "wrap-iife": 0,
-      "global-require": 0,
-      "no-negated-condition": 0,
-      "no-loop-func": 0,
-      "no-implicit-coercion": 0,
-      "no-use-extend-native/no-use-extend-native": 0,
-      "no-undef": 0
+      "comma-dangle": [
+        "error",
+        {
+          "arrays": "always-multiline",
+          "objects": "always-multiline",
+          "imports": "never",
+          "exports": "never",
+          "functions": "never"
+        }
+      ],
+      "no-underscore-dangle": "off"
     }
-  },
-  "files": [
-    "dist"
-  ]
+  }
 }
diff --git a/test/autocomplete.js b/test/autocomplete.js
index 70c70380..165d9361 100644
--- a/test/autocomplete.js
+++ b/test/autocomplete.js
@@ -1,4 +1,4 @@
-var Vorpal = require('../');
+var Vorpal = require('../lib/vorpal');
 var assert = require('assert');
 var _ = require('lodash');
 var vorpal = new Vorpal();
@@ -33,7 +33,7 @@ describe('session._autocomplete', function () {
     assert.equal(result, 'def ');
   });
 
-  
+
   it('should return the prefix along with the partial match when supplied with a prefix input', function() {
     var result = vorpal.session._autocomplete('foo/de', ['dally','definitive', 'definitop', 'bob']);
     assert.equal(result, "foo/definit");
@@ -47,4 +47,4 @@ describe('session._autocomplete', function () {
     assert.equal(result[2], "definitive");
     assert.equal(result[3], "definitop");
   });
-});
\ No newline at end of file
+});
diff --git a/test/index.js b/test/index.js
index 1817a30c..3c7ec12b 100755
--- a/test/index.js
+++ b/test/index.js
@@ -1,4 +1,4 @@
-var Vorpal = require('../');
+var Vorpal = require('../lib/vorpal');
 var should = require('should');
 
 var vorpal = new Vorpal();
diff --git a/test/integration.js b/test/integration.js
index e3011fed..f2d3a7a2 100755
--- a/test/integration.js
+++ b/test/integration.js
@@ -1,11 +1,11 @@
 'use strict';
 
-var Vorpal = require('../');
+var Vorpal = require('../lib/vorpal');
 var commands = require('./util/server');
 var BlueBirdPromise = require('bluebird');
 var fs = require('fs');
 
-var intercept = require('../dist/intercept');
+var intercept = require('../lib/intercept');
 var stdout = '';
 var umute;
 var mute = function () {
@@ -37,7 +37,7 @@ var stdout = function () {
 
 describe('integration tests:', function () {
   describe('vorpal', function () {
-    it('should overwrite duplicate commands', function (done) {
+    it.only('should overwrite duplicate commands', function (done) {
       var arr = ['a', 'b', 'c'];
       arr.forEach(function (item) {
         vorpal
@@ -46,7 +46,7 @@ describe('integration tests:', function () {
             cb(undefined, item);
           });
         vorpal
-          .command('overwrite me')
+          .command('overwrite_me')
           .action(function (args, cb) {
             cb(undefined, item);
           });
@@ -55,7 +55,7 @@ describe('integration tests:', function () {
       vorpal.exec('overwritten', function (err, data) {
         (err === undefined).should.be.true;
         data.should.equal('c');
-        vorpal.exec('overwrite me', function (err, data) {
+        vorpal.exec('overwrite_me', function (err, data) {
           (err === undefined).should.be.true;
           data.should.equal('c');
           done();
diff --git a/test/util/util.js b/test/util/util.js
index 095e11e1..303149d4 100755
--- a/test/util/util.js
+++ b/test/util/util.js
@@ -1,4 +1,4 @@
-var Vantage = require('../../');
+var Vorpal = require('../../lib/vorpal');
 var _ = require('lodash');
 var path = require('path');
 
@@ -14,7 +14,7 @@ module.exports = {
     });
 
     for (var i = 0; i < options.ports.length; ++i) {
-      var vorpal = new Vantage();
+      var vorpal = new Vorpal();
       var port = options.ports[i];
       vorpal
         .delimiter(port + ':')
diff --git a/test/vorpal.js b/test/vorpal.js
index 87e43a45..d37e67f9 100755
--- a/test/vorpal.js
+++ b/test/vorpal.js
@@ -5,10 +5,10 @@
   * this one.
   */
 
-var Vorpal = require('../');
+var Vorpal = require('../lib/vorpal');
 var should = require('should');
 var assert = require('assert');
-var intercept = require('../dist/intercept');
+var intercept = require('../lib/intercept');
 
 var vorpal;
 
@@ -85,6 +85,15 @@ vorpal
     return args;
   });
 
+vorpal
+  .command('defaultValues <animal>')
+  .option('-s, --sound [sound]', 'Animal Sound', {
+    default : 'moo',
+  })
+  .action(function (args, cb) {
+    return args;
+  });
+
 require('assert');
 
 describe('argument parsing', function () {
@@ -286,6 +295,20 @@ describe('option parsing', function () {
     });
   });
 
+  describe('options with default values', function () {
+    it('should allow for default values', function () {
+      var fixture = obj({ options: { sound: 'moo' }, animal: 'cow' });
+
+      obj(vorpal.execSync('defaultValues cow')).should.equal(fixture);
+    });
+
+    it('should allow for overwriting the default values', function () {
+      var fixture = obj({ options: { sound: 'bark' }, animal: 'dog' });
+
+      obj(vorpal.execSync('defaultValues --sound bark dog')).should.equal(fixture);
+    });
+  });
+
   describe('negated options', function () {
     it('should make a boolean option false', function () {
       var fixture = obj({ options: { bool: false }, args: ['cows'] });
diff --git a/yarn.lock b/yarn.lock
new file mode 100644
index 00000000..ac7eaa78
--- /dev/null
+++ b/yarn.lock
@@ -0,0 +1,4549 @@
+# THIS IS AN AUTOGENERATED FILE. DO NOT EDIT THIS FILE DIRECTLY.
+# yarn lockfile v1
+
+
+"@milesj/build-tool-config@^0.7.1":
+  version "0.7.1"
+  resolved "https://registry.yarnpkg.com/@milesj/build-tool-config/-/build-tool-config-0.7.1.tgz#9312fdc3d31007b5a1fde613e274ff1f296d7e65"
+  dependencies:
+    babel-cli "^6.24.1"
+    babel-eslint "^7.2.0"
+    babel-jest "^20.0.3"
+    babel-plugin-transform-runtime "^6.23.0"
+    babel-preset-env "^1.5.1"
+    babel-preset-flow "^6.23.0"
+    babel-preset-react "^6.24.1"
+    babel-preset-stage-2 "^6.24.1"
+    babel-runtime "^6.23.0"
+    copy "^0.3.0"
+    enzyme "^2.8.2"
+    eslint "^3.19.0"
+    eslint-config-airbnb "^15.0.1"
+    eslint-plugin-flowtype "^2.33.0"
+    eslint-plugin-import "^2.3.0"
+    eslint-plugin-jest "^20.0.3"
+    eslint-plugin-jsx-a11y "^5.0.3"
+    eslint-plugin-react "^7.0.1"
+    flow-bin "^0.47.0"
+    jest "^20.0.4"
+    json5 "^0.5.1"
+    react "^15.5.4"
+    react-dom "^15.5.4"
+    react-test-renderer "^15.5.4"
+    rimraf "^2.6.1"
+    rollup "^0.41.6"
+    rollup-plugin-babel "^2.7.1"
+    rollup-plugin-commonjs "^8.0.2"
+    rollup-plugin-json "^2.1.1"
+    rollup-plugin-node-resolve "^3.0.0"
+    rollup-plugin-replace "^1.1.1"
+    rollup-plugin-uglify "^2.0.1"
+    rollup-watch "^3.2.2"
+
+abab@^1.0.3:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/abab/-/abab-1.0.3.tgz#b81de5f7274ec4e756d797cd834f303642724e5d"
+
+abbrev@1:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/abbrev/-/abbrev-1.1.0.tgz#d0554c2256636e2f56e7c2e5ad183f859428d81f"
+
+acorn-globals@^3.1.0:
+  version "3.1.0"
+  resolved "https://registry.yarnpkg.com/acorn-globals/-/acorn-globals-3.1.0.tgz#fd8270f71fbb4996b004fa880ee5d46573a731bf"
+  dependencies:
+    acorn "^4.0.4"
+
+acorn-jsx@^3.0.0:
+  version "3.0.1"
+  resolved "https://registry.yarnpkg.com/acorn-jsx/-/acorn-jsx-3.0.1.tgz#afdf9488fb1ecefc8348f6fb22f464e32a58b36b"
+  dependencies:
+    acorn "^3.0.4"
+
+acorn@^3.0.4:
+  version "3.3.0"
+  resolved "https://registry.yarnpkg.com/acorn/-/acorn-3.3.0.tgz#45e37fb39e8da3f25baee3ff5369e2bb5f22017a"
+
+acorn@^4.0.1, acorn@^4.0.4:
+  version "4.0.13"
+  resolved "https://registry.yarnpkg.com/acorn/-/acorn-4.0.13.tgz#105495ae5361d697bd195c825192e1ad7f253787"
+
+acorn@^5.0.1:
+  version "5.0.3"
+  resolved "https://registry.yarnpkg.com/acorn/-/acorn-5.0.3.tgz#c460df08491463f028ccb82eab3730bf01087b3d"
+
+ajv-keywords@^1.0.0:
+  version "1.5.1"
+  resolved "https://registry.yarnpkg.com/ajv-keywords/-/ajv-keywords-1.5.1.tgz#314dd0a4b3368fad3dfcdc54ede6171b886daf3c"
+
+ajv@^4.7.0, ajv@^4.9.1:
+  version "4.11.8"
+  resolved "https://registry.yarnpkg.com/ajv/-/ajv-4.11.8.tgz#82ffb02b29e662ae53bdc20af15947706739c536"
+  dependencies:
+    co "^4.6.0"
+    json-stable-stringify "^1.0.1"
+
+align-text@^0.1.1, align-text@^0.1.3:
+  version "0.1.4"
+  resolved "https://registry.yarnpkg.com/align-text/-/align-text-0.1.4.tgz#0cd90a561093f35d0a99256c22b7069433fad117"
+  dependencies:
+    kind-of "^3.0.2"
+    longest "^1.0.1"
+    repeat-string "^1.5.2"
+
+amdefine@>=0.0.4:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/amdefine/-/amdefine-1.0.1.tgz#4a5282ac164729e93619bcfd3ad151f817ce91f5"
+
+ansi-escapes@^1.0.0, ansi-escapes@^1.1.0, ansi-escapes@^1.4.0:
+  version "1.4.0"
+  resolved "https://registry.yarnpkg.com/ansi-escapes/-/ansi-escapes-1.4.0.tgz#d3a8a83b319aa67793662b13e761c7911422306e"
+
+ansi-green@^0.1.1:
+  version "0.1.1"
+  resolved "https://registry.yarnpkg.com/ansi-green/-/ansi-green-0.1.1.tgz#8a5d9a979e458d57c40e33580b37390b8e10d0f7"
+  dependencies:
+    ansi-wrap "0.1.0"
+
+ansi-regex@^2.0.0, ansi-regex@^2.1.1:
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/ansi-regex/-/ansi-regex-2.1.1.tgz#c3b33ab5ee360d86e0e628f0468ae7ef27d654df"
+
+ansi-styles@^2.2.1:
+  version "2.2.1"
+  resolved "https://registry.yarnpkg.com/ansi-styles/-/ansi-styles-2.2.1.tgz#b432dd3358b634cf75e1e4664368240533c1ddbe"
+
+ansi-styles@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/ansi-styles/-/ansi-styles-3.0.0.tgz#5404e93a544c4fec7f048262977bebfe3155e0c1"
+  dependencies:
+    color-convert "^1.0.0"
+
+ansi-wrap@0.1.0:
+  version "0.1.0"
+  resolved "https://registry.yarnpkg.com/ansi-wrap/-/ansi-wrap-0.1.0.tgz#a82250ddb0015e9a27ca82e82ea603bbfa45efaf"
+
+anymatch@^1.3.0:
+  version "1.3.0"
+  resolved "https://registry.yarnpkg.com/anymatch/-/anymatch-1.3.0.tgz#a3e52fa39168c825ff57b0248126ce5a8ff95507"
+  dependencies:
+    arrify "^1.0.0"
+    micromatch "^2.1.5"
+
+append-transform@^0.4.0:
+  version "0.4.0"
+  resolved "https://registry.yarnpkg.com/append-transform/-/append-transform-0.4.0.tgz#d76ebf8ca94d276e247a36bad44a4b74ab611991"
+  dependencies:
+    default-require-extensions "^1.0.0"
+
+aproba@^1.0.3:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/aproba/-/aproba-1.1.1.tgz#95d3600f07710aa0e9298c726ad5ecf2eacbabab"
+
+are-we-there-yet@~1.1.2:
+  version "1.1.4"
+  resolved "https://registry.yarnpkg.com/are-we-there-yet/-/are-we-there-yet-1.1.4.tgz#bb5dca382bb94f05e15194373d16fd3ba1ca110d"
+  dependencies:
+    delegates "^1.0.0"
+    readable-stream "^2.0.6"
+
+argparse@^1.0.7:
+  version "1.0.9"
+  resolved "https://registry.yarnpkg.com/argparse/-/argparse-1.0.9.tgz#73d83bc263f86e97f8cc4f6bae1b0e90a7d22c86"
+  dependencies:
+    sprintf-js "~1.0.2"
+
+aria-query@^0.5.0:
+  version "0.5.0"
+  resolved "https://registry.yarnpkg.com/aria-query/-/aria-query-0.5.0.tgz#85e3152cd8cc5bab18dbed61cd9c4fce54fa79c3"
+  dependencies:
+    ast-types-flow "0.0.7"
+
+arr-diff@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/arr-diff/-/arr-diff-2.0.0.tgz#8f3b827f955a8bd669697e4a4256ac3ceae356cf"
+  dependencies:
+    arr-flatten "^1.0.1"
+
+arr-flatten@^1.0.1:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/arr-flatten/-/arr-flatten-1.0.3.tgz#a274ed85ac08849b6bd7847c4580745dc51adfb1"
+
+arr-union@^3.1.0:
+  version "3.1.0"
+  resolved "https://registry.yarnpkg.com/arr-union/-/arr-union-3.1.0.tgz#e39b09aea9def866a8f206e288af63919bae39c4"
+
+array-equal@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/array-equal/-/array-equal-1.0.0.tgz#8c2a5ef2472fd9ea742b04c77a75093ba2757c93"
+
+array-includes@^3.0.3:
+  version "3.0.3"
+  resolved "https://registry.yarnpkg.com/array-includes/-/array-includes-3.0.3.tgz#184b48f62d92d7452bb31b323165c7f8bd02266d"
+  dependencies:
+    define-properties "^1.1.2"
+    es-abstract "^1.7.0"
+
+array-union@^1.0.1:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/array-union/-/array-union-1.0.2.tgz#9a34410e4f4e3da23dea375be5be70f24778ec39"
+  dependencies:
+    array-uniq "^1.0.1"
+
+array-uniq@^1.0.1:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/array-uniq/-/array-uniq-1.0.3.tgz#af6ac877a25cc7f74e058894753858dfdb24fdb6"
+
+array-unique@^0.2.1:
+  version "0.2.1"
+  resolved "https://registry.yarnpkg.com/array-unique/-/array-unique-0.2.1.tgz#a1d97ccafcbc2625cc70fadceb36a50c58b01a53"
+
+arrify@^1.0.0, arrify@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/arrify/-/arrify-1.0.1.tgz#898508da2226f380df904728456849c1501a4b0d"
+
+asap@~2.0.3:
+  version "2.0.5"
+  resolved "https://registry.yarnpkg.com/asap/-/asap-2.0.5.tgz#522765b50c3510490e52d7dcfe085ef9ba96958f"
+
+asn1@~0.2.3:
+  version "0.2.3"
+  resolved "https://registry.yarnpkg.com/asn1/-/asn1-0.2.3.tgz#dac8787713c9966849fc8180777ebe9c1ddf3b86"
+
+assert-plus@1.0.0, assert-plus@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/assert-plus/-/assert-plus-1.0.0.tgz#f12e0f3c5d77b0b1cdd9146942e4e96c1e4dd525"
+
+assert-plus@^0.2.0:
+  version "0.2.0"
+  resolved "https://registry.yarnpkg.com/assert-plus/-/assert-plus-0.2.0.tgz#d74e1b87e7affc0db8aadb7021f3fe48101ab234"
+
+ast-types-flow@0.0.7:
+  version "0.0.7"
+  resolved "https://registry.yarnpkg.com/ast-types-flow/-/ast-types-flow-0.0.7.tgz#f70b735c6bca1a5c9c22d982c3e39e7feba3bdad"
+
+async-array-reduce@^0.2.0:
+  version "0.2.1"
+  resolved "https://registry.yarnpkg.com/async-array-reduce/-/async-array-reduce-0.2.1.tgz#c8be010a2b5cd00dea96c81116034693dfdd82d1"
+
+async-each@^1.0.0:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/async-each/-/async-each-1.0.1.tgz#19d386a1d9edc6e7c1c85d388aedbcc56d33602d"
+
+async@^1.4.0:
+  version "1.5.2"
+  resolved "https://registry.yarnpkg.com/async/-/async-1.5.2.tgz#ec6a61ae56480c0c3cb241c95618e20892f9672a"
+
+async@^2.1.4:
+  version "2.4.1"
+  resolved "https://registry.yarnpkg.com/async/-/async-2.4.1.tgz#62a56b279c98a11d0987096a01cc3eeb8eb7bbd7"
+  dependencies:
+    lodash "^4.14.0"
+
+asynckit@^0.4.0:
+  version "0.4.0"
+  resolved "https://registry.yarnpkg.com/asynckit/-/asynckit-0.4.0.tgz#c79ed97f7f34cb8f2ba1bc9790bcc366474b4b79"
+
+aws-sign2@~0.6.0:
+  version "0.6.0"
+  resolved "https://registry.yarnpkg.com/aws-sign2/-/aws-sign2-0.6.0.tgz#14342dd38dbcc94d0e5b87d763cd63612c0e794f"
+
+aws4@^1.2.1:
+  version "1.6.0"
+  resolved "https://registry.yarnpkg.com/aws4/-/aws4-1.6.0.tgz#83ef5ca860b2b32e4a0deedee8c771b9db57471e"
+
+axobject-query@^0.1.0:
+  version "0.1.0"
+  resolved "https://registry.yarnpkg.com/axobject-query/-/axobject-query-0.1.0.tgz#62f59dbc59c9f9242759ca349960e7a2fe3c36c0"
+  dependencies:
+    ast-types-flow "0.0.7"
+
+babel-cli@^6.24.1:
+  version "6.24.1"
+  resolved "https://registry.yarnpkg.com/babel-cli/-/babel-cli-6.24.1.tgz#207cd705bba61489b2ea41b5312341cf6aca2283"
+  dependencies:
+    babel-core "^6.24.1"
+    babel-polyfill "^6.23.0"
+    babel-register "^6.24.1"
+    babel-runtime "^6.22.0"
+    commander "^2.8.1"
+    convert-source-map "^1.1.0"
+    fs-readdir-recursive "^1.0.0"
+    glob "^7.0.0"
+    lodash "^4.2.0"
+    output-file-sync "^1.1.0"
+    path-is-absolute "^1.0.0"
+    slash "^1.0.0"
+    source-map "^0.5.0"
+    v8flags "^2.0.10"
+  optionalDependencies:
+    chokidar "^1.6.1"
+
+babel-code-frame@^6.16.0, babel-code-frame@^6.22.0:
+  version "6.22.0"
+  resolved "https://registry.yarnpkg.com/babel-code-frame/-/babel-code-frame-6.22.0.tgz#027620bee567a88c32561574e7fd0801d33118e4"
+  dependencies:
+    chalk "^1.1.0"
+    esutils "^2.0.2"
+    js-tokens "^3.0.0"
+
+babel-core@6, babel-core@^6.0.0, babel-core@^6.24.1:
+  version "6.24.1"
+  resolved "https://registry.yarnpkg.com/babel-core/-/babel-core-6.24.1.tgz#8c428564dce1e1f41fb337ec34f4c3b022b5ad83"
+  dependencies:
+    babel-code-frame "^6.22.0"
+    babel-generator "^6.24.1"
+    babel-helpers "^6.24.1"
+    babel-messages "^6.23.0"
+    babel-register "^6.24.1"
+    babel-runtime "^6.22.0"
+    babel-template "^6.24.1"
+    babel-traverse "^6.24.1"
+    babel-types "^6.24.1"
+    babylon "^6.11.0"
+    convert-source-map "^1.1.0"
+    debug "^2.1.1"
+    json5 "^0.5.0"
+    lodash "^4.2.0"
+    minimatch "^3.0.2"
+    path-is-absolute "^1.0.0"
+    private "^0.1.6"
+    slash "^1.0.0"
+    source-map "^0.5.0"
+
+babel-eslint@^7.2.0:
+  version "7.2.3"
+  resolved "https://registry.yarnpkg.com/babel-eslint/-/babel-eslint-7.2.3.tgz#b2fe2d80126470f5c19442dc757253a897710827"
+  dependencies:
+    babel-code-frame "^6.22.0"
+    babel-traverse "^6.23.1"
+    babel-types "^6.23.0"
+    babylon "^6.17.0"
+
+babel-generator@^6.18.0, babel-generator@^6.24.1:
+  version "6.24.1"
+  resolved "https://registry.yarnpkg.com/babel-generator/-/babel-generator-6.24.1.tgz#e715f486c58ded25649d888944d52aa07c5d9497"
+  dependencies:
+    babel-messages "^6.23.0"
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+cli-cursor@^2.0.0, cli-cursor@^2.1.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/cli-cursor/-/cli-cursor-2.1.0.tgz#b35dac376479facc3e94747d41d0d0f5238ffcb5"
+  dependencies:
+    restore-cursor "^2.0.0"
+
+cli-width@^2.0.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/cli-width/-/cli-width-2.1.0.tgz#b234ca209b29ef66fc518d9b98d5847b00edf00a"
+
+cliui@^2.1.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/cliui/-/cliui-2.1.0.tgz#4b475760ff80264c762c3a1719032e91c7fea0d1"
+  dependencies:
+    center-align "^0.1.1"
+    right-align "^0.1.1"
+    wordwrap "0.0.2"
+
+cliui@^3.2.0:
+  version "3.2.0"
+  resolved "https://registry.yarnpkg.com/cliui/-/cliui-3.2.0.tgz#120601537a916d29940f934da3b48d585a39213d"
+  dependencies:
+    string-width "^1.0.1"
+    strip-ansi "^3.0.1"
+    wrap-ansi "^2.0.0"
+
+clone-stats@^0.0.1:
+  version "0.0.1"
+  resolved "https://registry.yarnpkg.com/clone-stats/-/clone-stats-0.0.1.tgz#b88f94a82cf38b8791d58046ea4029ad88ca99d1"
+
+clone@^1.0.0:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/clone/-/clone-1.0.2.tgz#260b7a99ebb1edfe247538175f783243cb19d149"
+
+co@^4.6.0:
+  version "4.6.0"
+  resolved "https://registry.yarnpkg.com/co/-/co-4.6.0.tgz#6ea6bdf3d853ae54ccb8e47bfa0bf3f9031fb184"
+
+code-point-at@^1.0.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/code-point-at/-/code-point-at-1.1.0.tgz#0d070b4d043a5bea33a2f1a40e2edb3d9a4ccf77"
+
+color-convert@^1.0.0:
+  version "1.9.0"
+  resolved "https://registry.yarnpkg.com/color-convert/-/color-convert-1.9.0.tgz#1accf97dd739b983bf994d56fec8f95853641b7a"
+  dependencies:
+    color-name "^1.1.1"
+
+color-name@^1.1.1:
+  version "1.1.2"
+  resolved "https://registry.yarnpkg.com/color-name/-/color-name-1.1.2.tgz#5c8ab72b64bd2215d617ae9559ebb148475cf98d"
+
+combined-stream@^1.0.5, combined-stream@~1.0.5:
+  version "1.0.5"
+  resolved "https://registry.yarnpkg.com/combined-stream/-/combined-stream-1.0.5.tgz#938370a57b4a51dea2c77c15d5c5fdf895164009"
+  dependencies:
+    delayed-stream "~1.0.0"
+
+commander@2.9.0, commander@^2.8.1, commander@~2.9.0:
+  version "2.9.0"
+  resolved "https://registry.yarnpkg.com/commander/-/commander-2.9.0.tgz#9c99094176e12240cb22d6c5146098400fe0f7d4"
+  dependencies:
+    graceful-readlink ">= 1.0.0"
+
+concat-map@0.0.1:
+  version "0.0.1"
+  resolved "https://registry.yarnpkg.com/concat-map/-/concat-map-0.0.1.tgz#d8a96bd77fd68df7793a73036a3ba0d5405d477b"
+
+concat-stream@^1.5.2:
+  version "1.6.0"
+  resolved "https://registry.yarnpkg.com/concat-stream/-/concat-stream-1.6.0.tgz#0aac662fd52be78964d5532f694784e70110acf7"
+  dependencies:
+    inherits "^2.0.3"
+    readable-stream "^2.2.2"
+    typedarray "^0.0.6"
+
+console-control-strings@^1.0.0, console-control-strings@~1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/console-control-strings/-/console-control-strings-1.1.0.tgz#3d7cf4464db6446ea644bf4b39507f9851008e8e"
+
+contains-path@^0.1.0:
+  version "0.1.0"
+  resolved "https://registry.yarnpkg.com/contains-path/-/contains-path-0.1.0.tgz#fe8cf184ff6670b6baef01a9d4861a5cbec4120a"
+
+content-type-parser@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/content-type-parser/-/content-type-parser-1.0.1.tgz#c3e56988c53c65127fb46d4032a3a900246fdc94"
+
+convert-source-map@^1.1.0, convert-source-map@^1.4.0:
+  version "1.5.0"
+  resolved "https://registry.yarnpkg.com/convert-source-map/-/convert-source-map-1.5.0.tgz#9acd70851c6d5dfdd93d9282e5edf94a03ff46b5"
+
+copy@^0.3.0:
+  version "0.3.0"
+  resolved "https://registry.yarnpkg.com/copy/-/copy-0.3.0.tgz#0d5fda5e063d2dedf992b78ac060a0820caeeff3"
+  dependencies:
+    async-each "^1.0.0"
+    bluebird "^3.4.1"
+    extend-shallow "^2.0.1"
+    file-contents "^0.3.1"
+    glob-parent "^2.0.0"
+    graceful-fs "^4.1.4"
+    has-glob "^0.1.1"
+    is-absolute "^0.2.5"
+    lazy-cache "^2.0.1"
+    log-ok "^0.1.1"
+    matched "^0.4.1"
+    mkdirp "^0.5.1"
+    resolve-dir "^0.1.0"
+    to-file "^0.2.0"
+
+core-js@^1.0.0:
+  version "1.2.7"
+  resolved "https://registry.yarnpkg.com/core-js/-/core-js-1.2.7.tgz#652294c14651db28fa93bd2d5ff2983a4f08c636"
+
+core-js@^2.4.0:
+  version "2.4.1"
+  resolved "https://registry.yarnpkg.com/core-js/-/core-js-2.4.1.tgz#4de911e667b0eae9124e34254b53aea6fc618d3e"
+
+core-util-is@~1.0.0:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/core-util-is/-/core-util-is-1.0.2.tgz#b5fd54220aa2bc5ab57aab7140c940754503c1a7"
+
+cryptiles@2.x.x:
+  version "2.0.5"
+  resolved "https://registry.yarnpkg.com/cryptiles/-/cryptiles-2.0.5.tgz#3bdfecdc608147c1c67202fa291e7dca59eaa3b8"
+  dependencies:
+    boom "2.x.x"
+
+css-select@~1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/css-select/-/css-select-1.2.0.tgz#2b3a110539c5355f1cd8d314623e870b121ec858"
+  dependencies:
+    boolbase "~1.0.0"
+    css-what "2.1"
+    domutils "1.5.1"
+    nth-check "~1.0.1"
+
+css-what@2.1:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/css-what/-/css-what-2.1.0.tgz#9467d032c38cfaefb9f2d79501253062f87fa1bd"
+
+cssom@0.3.x, "cssom@>= 0.3.2 < 0.4.0":
+  version "0.3.2"
+  resolved "https://registry.yarnpkg.com/cssom/-/cssom-0.3.2.tgz#b8036170c79f07a90ff2f16e22284027a243848b"
+
+"cssstyle@>= 0.2.37 < 0.3.0":
+  version "0.2.37"
+  resolved "https://registry.yarnpkg.com/cssstyle/-/cssstyle-0.2.37.tgz#541097234cb2513c83ceed3acddc27ff27987d54"
+  dependencies:
+    cssom "0.3.x"
+
+d@1:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/d/-/d-1.0.0.tgz#754bb5bfe55451da69a58b94d45f4c5b0462d58f"
+  dependencies:
+    es5-ext "^0.10.9"
+
+damerau-levenshtein@^1.0.0:
+  version "1.0.4"
+  resolved "https://registry.yarnpkg.com/damerau-levenshtein/-/damerau-levenshtein-1.0.4.tgz#03191c432cb6eea168bb77f3a55ffdccb8978514"
+
+dashdash@^1.12.0:
+  version "1.14.1"
+  resolved "https://registry.yarnpkg.com/dashdash/-/dashdash-1.14.1.tgz#853cfa0f7cbe2fed5de20326b8dd581035f6e2f0"
+  dependencies:
+    assert-plus "^1.0.0"
+
+debug@2.2.0:
+  version "2.2.0"
+  resolved "https://registry.yarnpkg.com/debug/-/debug-2.2.0.tgz#f87057e995b1a1f6ae6a4960664137bc56f039da"
+  dependencies:
+    ms "0.7.1"
+
+debug@2.6.0, debug@^2.1.1, debug@^2.2.0:
+  version "2.6.0"
+  resolved "https://registry.yarnpkg.com/debug/-/debug-2.6.0.tgz#bc596bcabe7617f11d9fa15361eded5608b8499b"
+  dependencies:
+    ms "0.7.2"
+
+debug@^2.6.3:
+  version "2.6.8"
+  resolved "https://registry.yarnpkg.com/debug/-/debug-2.6.8.tgz#e731531ca2ede27d188222427da17821d68ff4fc"
+  dependencies:
+    ms "2.0.0"
+
+decamelize@^1.0.0, decamelize@^1.1.1:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/decamelize/-/decamelize-1.2.0.tgz#f6534d15148269b20352e7bee26f501f9a191290"
+
+deep-extend@~0.4.0:
+  version "0.4.2"
+  resolved "https://registry.yarnpkg.com/deep-extend/-/deep-extend-0.4.2.tgz#48b699c27e334bf89f10892be432f6e4c7d34a7f"
+
+deep-is@~0.1.3:
+  version "0.1.3"
+  resolved "https://registry.yarnpkg.com/deep-is/-/deep-is-0.1.3.tgz#b369d6fb5dbc13eecf524f91b070feedc357cf34"
+
+default-require-extensions@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/default-require-extensions/-/default-require-extensions-1.0.0.tgz#f37ea15d3e13ffd9b437d33e1a75b5fb97874cb8"
+  dependencies:
+    strip-bom "^2.0.0"
+
+define-properties@^1.1.2:
+  version "1.1.2"
+  resolved "https://registry.yarnpkg.com/define-properties/-/define-properties-1.1.2.tgz#83a73f2fea569898fb737193c8f873caf6d45c94"
+  dependencies:
+    foreach "^2.0.5"
+    object-keys "^1.0.8"
+
+define-property@^0.2.5:
+  version "0.2.5"
+  resolved "https://registry.yarnpkg.com/define-property/-/define-property-0.2.5.tgz#c35b1ef918ec3c990f9a5bc57be04aacec5c8116"
+  dependencies:
+    is-descriptor "^0.1.0"
+
+del@^2.0.2:
+  version "2.2.2"
+  resolved "https://registry.yarnpkg.com/del/-/del-2.2.2.tgz#c12c981d067846c84bcaf862cff930d907ffd1a8"
+  dependencies:
+    globby "^5.0.0"
+    is-path-cwd "^1.0.0"
+    is-path-in-cwd "^1.0.0"
+    object-assign "^4.0.1"
+    pify "^2.0.0"
+    pinkie-promise "^2.0.0"
+    rimraf "^2.2.8"
+
+delayed-stream@~1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/delayed-stream/-/delayed-stream-1.0.0.tgz#df3ae199acadfb7d440aaae0b29e2272b24ec619"
+
+delegates@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/delegates/-/delegates-1.0.0.tgz#84c6e159b81904fdca59a0ef44cd870d31250f9a"
+
+detect-indent@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/detect-indent/-/detect-indent-4.0.0.tgz#f76d064352cdf43a1cb6ce619c4ee3a9475de208"
+  dependencies:
+    repeating "^2.0.0"
+
+diff@3.2.0, diff@^3.2.0:
+  version "3.2.0"
+  resolved "https://registry.yarnpkg.com/diff/-/diff-3.2.0.tgz#c9ce393a4b7cbd0b058a725c93df299027868ff9"
+
+doctrine@1.5.0:
+  version "1.5.0"
+  resolved "https://registry.yarnpkg.com/doctrine/-/doctrine-1.5.0.tgz#379dce730f6166f76cefa4e6707a159b02c5a6fa"
+  dependencies:
+    esutils "^2.0.2"
+    isarray "^1.0.0"
+
+doctrine@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/doctrine/-/doctrine-2.0.0.tgz#c73d8d2909d22291e1a007a395804da8b665fe63"
+  dependencies:
+    esutils "^2.0.2"
+    isarray "^1.0.0"
+
+dom-serializer@0, dom-serializer@~0.1.0:
+  version "0.1.0"
+  resolved "https://registry.yarnpkg.com/dom-serializer/-/dom-serializer-0.1.0.tgz#073c697546ce0780ce23be4a28e293e40bc30c82"
+  dependencies:
+    domelementtype "~1.1.1"
+    entities "~1.1.1"
+
+domelementtype@1, domelementtype@^1.3.0:
+  version "1.3.0"
+  resolved "https://registry.yarnpkg.com/domelementtype/-/domelementtype-1.3.0.tgz#b17aed82e8ab59e52dd9c19b1756e0fc187204c2"
+
+domelementtype@~1.1.1:
+  version "1.1.3"
+  resolved "https://registry.yarnpkg.com/domelementtype/-/domelementtype-1.1.3.tgz#bd28773e2642881aec51544924299c5cd822185b"
+
+domhandler@^2.3.0:
+  version "2.4.1"
+  resolved "https://registry.yarnpkg.com/domhandler/-/domhandler-2.4.1.tgz#892e47000a99be55bbf3774ffea0561d8879c259"
+  dependencies:
+    domelementtype "1"
+
+domutils@1.5.1, domutils@^1.5.1:
+  version "1.5.1"
+  resolved "https://registry.yarnpkg.com/domutils/-/domutils-1.5.1.tgz#dcd8488a26f563d61079e48c9f7b7e32373682cf"
+  dependencies:
+    dom-serializer "0"
+    domelementtype "1"
+
+ecc-jsbn@~0.1.1:
+  version "0.1.1"
+  resolved "https://registry.yarnpkg.com/ecc-jsbn/-/ecc-jsbn-0.1.1.tgz#0fc73a9ed5f0d53c38193398523ef7e543777505"
+  dependencies:
+    jsbn "~0.1.0"
+
+electron-to-chromium@^1.3.11:
+  version "1.3.11"
+  resolved "https://registry.yarnpkg.com/electron-to-chromium/-/electron-to-chromium-1.3.11.tgz#744761df1d67b492b322ce9aa0aba5393260eb61"
+
+emoji-regex@^6.1.0:
+  version "6.4.2"
+  resolved "https://registry.yarnpkg.com/emoji-regex/-/emoji-regex-6.4.2.tgz#a30b6fee353d406d96cfb9fa765bdc82897eff6e"
+
+encoding@^0.1.11:
+  version "0.1.12"
+  resolved "https://registry.yarnpkg.com/encoding/-/encoding-0.1.12.tgz#538b66f3ee62cd1ab51ec323829d1f9480c74beb"
+  dependencies:
+    iconv-lite "~0.4.13"
+
+entities@^1.1.1, entities@~1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/entities/-/entities-1.1.1.tgz#6e5c2d0a5621b5dadaecef80b90edfb5cd7772f0"
+
+enzyme@^2.8.2:
+  version "2.8.2"
+  resolved "https://registry.yarnpkg.com/enzyme/-/enzyme-2.8.2.tgz#6c8bcb05012abc4aa4bc3213fb23780b9b5b1714"
+  dependencies:
+    cheerio "^0.22.0"
+    function.prototype.name "^1.0.0"
+    is-subset "^0.1.1"
+    lodash "^4.17.2"
+    object-is "^1.0.1"
+    object.assign "^4.0.4"
+    object.entries "^1.0.3"
+    object.values "^1.0.3"
+    prop-types "^15.5.4"
+    uuid "^2.0.3"
+
+"errno@>=0.1.1 <0.2.0-0":
+  version "0.1.4"
+  resolved "https://registry.yarnpkg.com/errno/-/errno-0.1.4.tgz#b896e23a9e5e8ba33871fc996abd3635fc9a1c7d"
+  dependencies:
+    prr "~0.0.0"
+
+error-ex@^1.2.0:
+  version "1.3.1"
+  resolved "https://registry.yarnpkg.com/error-ex/-/error-ex-1.3.1.tgz#f855a86ce61adc4e8621c3cda21e7a7612c3a8dc"
+  dependencies:
+    is-arrayish "^0.2.1"
+
+es-abstract@^1.6.1, es-abstract@^1.7.0:
+  version "1.7.0"
+  resolved "https://registry.yarnpkg.com/es-abstract/-/es-abstract-1.7.0.tgz#dfade774e01bfcd97f96180298c449c8623fb94c"
+  dependencies:
+    es-to-primitive "^1.1.1"
+    function-bind "^1.1.0"
+    is-callable "^1.1.3"
+    is-regex "^1.0.3"
+
+es-to-primitive@^1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/es-to-primitive/-/es-to-primitive-1.1.1.tgz#45355248a88979034b6792e19bb81f2b7975dd0d"
+  dependencies:
+    is-callable "^1.1.1"
+    is-date-object "^1.0.1"
+    is-symbol "^1.0.1"
+
+es5-ext@^0.10.14, es5-ext@^0.10.9, es5-ext@~0.10.14:
+  version "0.10.21"
+  resolved "https://registry.yarnpkg.com/es5-ext/-/es5-ext-0.10.21.tgz#19a725f9e51d0300bbc1e8e821109fd9daf55925"
+  dependencies:
+    es6-iterator "2"
+    es6-symbol "~3.1"
+
+es6-iterator@2, es6-iterator@^2.0.1, es6-iterator@~2.0.1:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/es6-iterator/-/es6-iterator-2.0.1.tgz#8e319c9f0453bf575d374940a655920e59ca5512"
+  dependencies:
+    d "1"
+    es5-ext "^0.10.14"
+    es6-symbol "^3.1"
+
+es6-map@^0.1.3:
+  version "0.1.5"
+  resolved "https://registry.yarnpkg.com/es6-map/-/es6-map-0.1.5.tgz#9136e0503dcc06a301690f0bb14ff4e364e949f0"
+  dependencies:
+    d "1"
+    es5-ext "~0.10.14"
+    es6-iterator "~2.0.1"
+    es6-set "~0.1.5"
+    es6-symbol "~3.1.1"
+    event-emitter "~0.3.5"
+
+es6-set@~0.1.5:
+  version "0.1.5"
+  resolved "https://registry.yarnpkg.com/es6-set/-/es6-set-0.1.5.tgz#d2b3ec5d4d800ced818db538d28974db0a73ccb1"
+  dependencies:
+    d "1"
+    es5-ext "~0.10.14"
+    es6-iterator "~2.0.1"
+    es6-symbol "3.1.1"
+    event-emitter "~0.3.5"
+
+es6-symbol@3.1.1, es6-symbol@^3.1, es6-symbol@^3.1.1, es6-symbol@~3.1, es6-symbol@~3.1.1:
+  version "3.1.1"
+  resolved "https://registry.yarnpkg.com/es6-symbol/-/es6-symbol-3.1.1.tgz#bf00ef4fdab6ba1b46ecb7b629b4c7ed5715cc77"
+  dependencies:
+    d "1"
+    es5-ext "~0.10.14"
+
+es6-weak-map@^2.0.1:
+  version "2.0.2"
+  resolved "https://registry.yarnpkg.com/es6-weak-map/-/es6-weak-map-2.0.2.tgz#5e3ab32251ffd1538a1f8e5ffa1357772f92d96f"
+  dependencies:
+    d "1"
+    es5-ext "^0.10.14"
+    es6-iterator "^2.0.1"
+    es6-symbol "^3.1.1"
+
+escape-string-regexp@1.0.5, escape-string-regexp@^1.0.2, escape-string-regexp@^1.0.5:
+  version "1.0.5"
+  resolved "https://registry.yarnpkg.com/escape-string-regexp/-/escape-string-regexp-1.0.5.tgz#1b61c0562190a8dff6ae3bb2cf0200ca130b86d4"
+
+escodegen@^1.6.1:
+  version "1.8.1"
+  resolved "https://registry.yarnpkg.com/escodegen/-/escodegen-1.8.1.tgz#5a5b53af4693110bebb0867aa3430dd3b70a1018"
+  dependencies:
+    esprima "^2.7.1"
+    estraverse "^1.9.1"
+    esutils "^2.0.2"
+    optionator "^0.8.1"
+  optionalDependencies:
+    source-map "~0.2.0"
+
+escope@^3.6.0:
+  version "3.6.0"
+  resolved "https://registry.yarnpkg.com/escope/-/escope-3.6.0.tgz#e01975e812781a163a6dadfdd80398dc64c889c3"
+  dependencies:
+    es6-map "^0.1.3"
+    es6-weak-map "^2.0.1"
+    esrecurse "^4.1.0"
+    estraverse "^4.1.1"
+
+eslint-config-airbnb-base@^11.2.0:
+  version "11.2.0"
+  resolved "https://registry.yarnpkg.com/eslint-config-airbnb-base/-/eslint-config-airbnb-base-11.2.0.tgz#19a9dc4481a26f70904545ec040116876018f853"
+
+eslint-config-airbnb@^15.0.1:
+  version "15.0.1"
+  resolved "https://registry.yarnpkg.com/eslint-config-airbnb/-/eslint-config-airbnb-15.0.1.tgz#7b5188e5b7c74b9b2ce639fd5e1daba8fd761aed"
+  dependencies:
+    eslint-config-airbnb-base "^11.2.0"
+
+eslint-import-resolver-node@^0.2.0:
+  version "0.2.3"
+  resolved "https://registry.yarnpkg.com/eslint-import-resolver-node/-/eslint-import-resolver-node-0.2.3.tgz#5add8106e8c928db2cba232bcd9efa846e3da16c"
+  dependencies:
+    debug "^2.2.0"
+    object-assign "^4.0.1"
+    resolve "^1.1.6"
+
+eslint-module-utils@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/eslint-module-utils/-/eslint-module-utils-2.0.0.tgz#a6f8c21d901358759cdc35dbac1982ae1ee58bce"
+  dependencies:
+    debug "2.2.0"
+    pkg-dir "^1.0.0"
+
+eslint-plugin-flowtype@^2.33.0:
+  version "2.33.0"
+  resolved "https://registry.yarnpkg.com/eslint-plugin-flowtype/-/eslint-plugin-flowtype-2.33.0.tgz#b2783814ed2ddcf729953b8f65ff73c90cabee4b"
+  dependencies:
+    lodash "^4.15.0"
+
+eslint-plugin-import@^2.3.0:
+  version "2.3.0"
+  resolved "https://registry.yarnpkg.com/eslint-plugin-import/-/eslint-plugin-import-2.3.0.tgz#37c801e0ada0e296cbdf20c3f393acb5b52af36b"
+  dependencies:
+    builtin-modules "^1.1.1"
+    contains-path "^0.1.0"
+    debug "^2.2.0"
+    doctrine "1.5.0"
+    eslint-import-resolver-node "^0.2.0"
+    eslint-module-utils "^2.0.0"
+    has "^1.0.1"
+    lodash.cond "^4.3.0"
+    minimatch "^3.0.3"
+    read-pkg-up "^2.0.0"
+
+eslint-plugin-jest@^20.0.3:
+  version "20.0.3"
+  resolved "https://registry.yarnpkg.com/eslint-plugin-jest/-/eslint-plugin-jest-20.0.3.tgz#ec15eba6ac0ab44a67ebf6e02672ca9d7e7cba29"
+
+eslint-plugin-jsx-a11y@^5.0.3:
+  version "5.0.3"
+  resolved "https://registry.yarnpkg.com/eslint-plugin-jsx-a11y/-/eslint-plugin-jsx-a11y-5.0.3.tgz#4a939f76ec125010528823331bf948cc573380b6"
+  dependencies:
+    aria-query "^0.5.0"
+    array-includes "^3.0.3"
+    ast-types-flow "0.0.7"
+    axobject-query "^0.1.0"
+    damerau-levenshtein "^1.0.0"
+    emoji-regex "^6.1.0"
+    jsx-ast-utils "^1.4.0"
+
+eslint-plugin-react@^7.0.1:
+  version "7.0.1"
+  resolved "https://registry.yarnpkg.com/eslint-plugin-react/-/eslint-plugin-react-7.0.1.tgz#e78107e1e559c6e2b17786bb67c2e2a010ad0d2f"
+  dependencies:
+    doctrine "^2.0.0"
+    has "^1.0.1"
+    jsx-ast-utils "^1.3.4"
+
+eslint@^3.19.0:
+  version "3.19.0"
+  resolved "https://registry.yarnpkg.com/eslint/-/eslint-3.19.0.tgz#c8fc6201c7f40dd08941b87c085767386a679acc"
+  dependencies:
+    babel-code-frame "^6.16.0"
+    chalk "^1.1.3"
+    concat-stream "^1.5.2"
+    debug "^2.1.1"
+    doctrine "^2.0.0"
+    escope "^3.6.0"
+    espree "^3.4.0"
+    esquery "^1.0.0"
+    estraverse "^4.2.0"
+    esutils "^2.0.2"
+    file-entry-cache "^2.0.0"
+    glob "^7.0.3"
+    globals "^9.14.0"
+    ignore "^3.2.0"
+    imurmurhash "^0.1.4"
+    inquirer "^0.12.0"
+    is-my-json-valid "^2.10.0"
+    is-resolvable "^1.0.0"
+    js-yaml "^3.5.1"
+    json-stable-stringify "^1.0.0"
+    levn "^0.3.0"
+    lodash "^4.0.0"
+    mkdirp "^0.5.0"
+    natural-compare "^1.4.0"
+    optionator "^0.8.2"
+    path-is-inside "^1.0.1"
+    pluralize "^1.2.1"
+    progress "^1.1.8"
+    require-uncached "^1.0.2"
+    shelljs "^0.7.5"
+    strip-bom "^3.0.0"
+    strip-json-comments "~2.0.1"
+    table "^3.7.8"
+    text-table "~0.2.0"
+    user-home "^2.0.0"
+
+espree@^3.4.0:
+  version "3.4.3"
+  resolved "https://registry.yarnpkg.com/espree/-/espree-3.4.3.tgz#2910b5ccd49ce893c2ffffaab4fd8b3a31b82374"
+  dependencies:
+    acorn "^5.0.1"
+    acorn-jsx "^3.0.0"
+
+esprima@^2.7.1:
+  version "2.7.3"
+  resolved "https://registry.yarnpkg.com/esprima/-/esprima-2.7.3.tgz#96e3b70d5779f6ad49cd032673d1c312767ba581"
+
+esprima@^3.1.1:
+  version "3.1.3"
+  resolved "https://registry.yarnpkg.com/esprima/-/esprima-3.1.3.tgz#fdca51cee6133895e3c88d535ce49dbff62a4633"
+
+esquery@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/esquery/-/esquery-1.0.0.tgz#cfba8b57d7fba93f17298a8a006a04cda13d80fa"
+  dependencies:
+    estraverse "^4.0.0"
+
+esrecurse@^4.1.0:
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/esrecurse/-/esrecurse-4.1.0.tgz#4713b6536adf7f2ac4f327d559e7756bff648220"
+  dependencies:
+    estraverse "~4.1.0"
+    object-assign "^4.0.1"
+
+estraverse@^1.9.1:
+  version "1.9.3"
+  resolved "https://registry.yarnpkg.com/estraverse/-/estraverse-1.9.3.tgz#af67f2dc922582415950926091a4005d29c9bb44"
+
+estraverse@^4.0.0, estraverse@^4.1.1, estraverse@^4.2.0:
+  version "4.2.0"
+  resolved "https://registry.yarnpkg.com/estraverse/-/estraverse-4.2.0.tgz#0dee3fed31fcd469618ce7342099fc1afa0bdb13"
+
+estraverse@~4.1.0:
+  version "4.1.1"
+  resolved "https://registry.yarnpkg.com/estraverse/-/estraverse-4.1.1.tgz#f6caca728933a850ef90661d0e17982ba47111a2"
+
+estree-walker@^0.2.1:
+  version "0.2.1"
+  resolved "https://registry.yarnpkg.com/estree-walker/-/estree-walker-0.2.1.tgz#bdafe8095383d8414d5dc2ecf4c9173b6db9412e"
+
+estree-walker@^0.3.0:
+  version "0.3.1"
+  resolved "https://registry.yarnpkg.com/estree-walker/-/estree-walker-0.3.1.tgz#e6b1a51cf7292524e7237c312e5fe6660c1ce1aa"
+
+esutils@^2.0.0, esutils@^2.0.2:
+  version "2.0.2"
+  resolved "https://registry.yarnpkg.com/esutils/-/esutils-2.0.2.tgz#0abf4f1caa5bcb1f7a9d8acc6dea4faaa04bac9b"
+
+event-emitter@~0.3.5:
+  version "0.3.5"
+  resolved "https://registry.yarnpkg.com/event-emitter/-/event-emitter-0.3.5.tgz#df8c69eef1647923c7157b9ce83840610b02cc39"
+  dependencies:
+    d "1"
+    es5-ext "~0.10.14"
+
+exec-sh@^0.2.0:
+  version "0.2.0"
+  resolved "https://registry.yarnpkg.com/exec-sh/-/exec-sh-0.2.0.tgz#14f75de3f20d286ef933099b2ce50a90359cef10"
+  dependencies:
+    merge "^1.1.3"
+
+exit-hook@^1.0.0:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/exit-hook/-/exit-hook-1.1.1.tgz#f05ca233b48c05d54fff07765df8507e95c02ff8"
+
+expand-brackets@^0.1.4:
+  version "0.1.5"
+  resolved "https://registry.yarnpkg.com/expand-brackets/-/expand-brackets-0.1.5.tgz#df07284e342a807cd733ac5af72411e581d1177b"
+  dependencies:
+    is-posix-bracket "^0.1.0"
+
+expand-range@^1.8.1:
+  version "1.8.2"
+  resolved "https://registry.yarnpkg.com/expand-range/-/expand-range-1.8.2.tgz#a299effd335fe2721ebae8e257ec79644fc85337"
+  dependencies:
+    fill-range "^2.1.0"
+
+expand-tilde@^1.2.2:
+  version "1.2.2"
+  resolved "https://registry.yarnpkg.com/expand-tilde/-/expand-tilde-1.2.2.tgz#0b81eba897e5a3d31d1c3d102f8f01441e559449"
+  dependencies:
+    os-homedir "^1.0.1"
+
+extend-shallow@^2.0.0, extend-shallow@^2.0.1:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/extend-shallow/-/extend-shallow-2.0.1.tgz#51af7d614ad9a9f610ea1bafbb989d6b1c56890f"
+  dependencies:
+    is-extendable "^0.1.0"
+
+extend@~3.0.0:
+  version "3.0.1"
+  resolved "https://registry.yarnpkg.com/extend/-/extend-3.0.1.tgz#a755ea7bc1adfcc5a31ce7e762dbaadc5e636444"
+
+external-editor@^2.0.1:
+  version "2.0.4"
+  resolved "https://registry.yarnpkg.com/external-editor/-/external-editor-2.0.4.tgz#1ed9199da9cbfe2ef2f7a31b2fde8b0d12368972"
+  dependencies:
+    iconv-lite "^0.4.17"
+    jschardet "^1.4.2"
+    tmp "^0.0.31"
+
+extglob@^0.3.1:
+  version "0.3.2"
+  resolved "https://registry.yarnpkg.com/extglob/-/extglob-0.3.2.tgz#2e18ff3d2f49ab2765cec9023f011daa8d8349a1"
+  dependencies:
+    is-extglob "^1.0.0"
+
+extsprintf@1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/extsprintf/-/extsprintf-1.0.2.tgz#e1080e0658e300b06294990cc70e1502235fd550"
+
+fast-levenshtein@~2.0.4:
+  version "2.0.6"
+  resolved "https://registry.yarnpkg.com/fast-levenshtein/-/fast-levenshtein-2.0.6.tgz#3d8a5c66883a16a30ca8643e851f19baa7797917"
+
+fb-watchman@^1.8.0:
+  version "1.9.2"
+  resolved "https://registry.yarnpkg.com/fb-watchman/-/fb-watchman-1.9.2.tgz#a24cf47827f82d38fb59a69ad70b76e3b6ae7383"
+  dependencies:
+    bser "1.0.2"
+
+fb-watchman@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/fb-watchman/-/fb-watchman-2.0.0.tgz#54e9abf7dfa2f26cd9b1636c588c1afc05de5d58"
+  dependencies:
+    bser "^2.0.0"
+
+fbjs@^0.8.9:
+  version "0.8.12"
+  resolved "https://registry.yarnpkg.com/fbjs/-/fbjs-0.8.12.tgz#10b5d92f76d45575fd63a217d4ea02bea2f8ed04"
+  dependencies:
+    core-js "^1.0.0"
+    isomorphic-fetch "^2.1.1"
+    loose-envify "^1.0.0"
+    object-assign "^4.1.0"
+    promise "^7.1.1"
+    setimmediate "^1.0.5"
+    ua-parser-js "^0.7.9"
+
+figures@^1.3.5:
+  version "1.7.0"
+  resolved "https://registry.yarnpkg.com/figures/-/figures-1.7.0.tgz#cbe1e3affcf1cd44b80cadfed28dc793a9701d2e"
+  dependencies:
+    escape-string-regexp "^1.0.5"
+    object-assign "^4.1.0"
+
+figures@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/figures/-/figures-2.0.0.tgz#3ab1a2d2a62c8bfb431a0c94cb797a2fce27c962"
+  dependencies:
+    escape-string-regexp "^1.0.5"
+
+file-contents@^0.2.4:
+  version "0.2.4"
+  resolved "https://registry.yarnpkg.com/file-contents/-/file-contents-0.2.4.tgz#0506f7b8eff62afa45ae45da4df9e9d47df453cb"
+  dependencies:
+    extend-shallow "^2.0.0"
+    file-stat "^0.1.0"
+    graceful-fs "^4.1.2"
+    is-buffer "^1.1.0"
+    is-utf8 "^0.2.0"
+    lazy-cache "^0.2.3"
+    through2 "^2.0.0"
+
+file-contents@^0.3.1:
+  version "0.3.2"
+  resolved "https://registry.yarnpkg.com/file-contents/-/file-contents-0.3.2.tgz#a0939fed1b8cda1580266fc6b753a232fb46de53"
+  dependencies:
+    define-property "^0.2.5"
+    extend-shallow "^2.0.1"
+    file-stat "^0.2.3"
+    fs-exists-sync "^0.1.0"
+    graceful-fs "^4.1.4"
+    is-buffer "^1.1.3"
+    isobject "^2.1.0"
+    lazy-cache "^2.0.1"
+    strip-bom-buffer "^0.1.1"
+    strip-bom-string "^0.1.2"
+    through2 "^2.0.1"
+    vinyl "^1.1.1"
+
+file-entry-cache@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/file-entry-cache/-/file-entry-cache-2.0.0.tgz#c392990c3e684783d838b8c84a45d8a048458361"
+  dependencies:
+    flat-cache "^1.2.1"
+    object-assign "^4.0.1"
+
+file-stat@^0.1.0:
+  version "0.1.3"
+  resolved "https://registry.yarnpkg.com/file-stat/-/file-stat-0.1.3.tgz#d0f1961d7d10732928120a6e6955471c2a5b5411"
+  dependencies:
+    graceful-fs "^4.1.2"
+    lazy-cache "^0.2.3"
+    through2 "^2.0.0"
+
+file-stat@^0.2.3:
+  version "0.2.3"
+  resolved "https://registry.yarnpkg.com/file-stat/-/file-stat-0.2.3.tgz#469a7e927d6930079624cdb38109405456cb06a9"
+  dependencies:
+    fs-exists-sync "^0.1.0"
+    graceful-fs "^4.1.4"
+    lazy-cache "^2.0.1"
+    through2 "^2.0.1"
+
+filename-regex@^2.0.0:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/filename-regex/-/filename-regex-2.0.1.tgz#c1c4b9bee3e09725ddb106b75c1e301fe2f18b26"
+
+fileset@^2.0.2:
+  version "2.0.3"
+  resolved "https://registry.yarnpkg.com/fileset/-/fileset-2.0.3.tgz#8e7548a96d3cc2327ee5e674168723a333bba2a0"
+  dependencies:
+    glob "^7.0.3"
+    minimatch "^3.0.3"
+
+fill-range@^2.1.0:
+  version "2.2.3"
+  resolved "https://registry.yarnpkg.com/fill-range/-/fill-range-2.2.3.tgz#50b77dfd7e469bc7492470963699fe7a8485a723"
+  dependencies:
+    is-number "^2.1.0"
+    isobject "^2.0.0"
+    randomatic "^1.1.3"
+    repeat-element "^1.1.2"
+    repeat-string "^1.5.2"
+
+find-up@^1.0.0:
+  version "1.1.2"
+  resolved "https://registry.yarnpkg.com/find-up/-/find-up-1.1.2.tgz#6b2e9822b1a2ce0a60ab64d610eccad53cb24d0f"
+  dependencies:
+    path-exists "^2.0.0"
+    pinkie-promise "^2.0.0"
+
+find-up@^2.0.0, find-up@^2.1.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/find-up/-/find-up-2.1.0.tgz#45d1b7e506c717ddd482775a2b77920a3c0c57a7"
+  dependencies:
+    locate-path "^2.0.0"
+
+flat-cache@^1.2.1:
+  version "1.2.2"
+  resolved "https://registry.yarnpkg.com/flat-cache/-/flat-cache-1.2.2.tgz#fa86714e72c21db88601761ecf2f555d1abc6b96"
+  dependencies:
+    circular-json "^0.3.1"
+    del "^2.0.2"
+    graceful-fs "^4.1.2"
+    write "^0.2.1"
+
+flow-bin@^0.47.0:
+  version "0.47.0"
+  resolved "https://registry.yarnpkg.com/flow-bin/-/flow-bin-0.47.0.tgz#a2a08ab3e0d1f1cb57d17e27b30b118b62fda367"
+
+for-in@^1.0.1:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/for-in/-/for-in-1.0.2.tgz#81068d295a8142ec0ac726c6e2200c30fb6d5e80"
+
+for-own@^0.1.4:
+  version "0.1.5"
+  resolved "https://registry.yarnpkg.com/for-own/-/for-own-0.1.5.tgz#5265c681a4f294dabbf17c9509b6763aa84510ce"
+  dependencies:
+    for-in "^1.0.1"
+
+foreach@^2.0.5:
+  version "2.0.5"
+  resolved "https://registry.yarnpkg.com/foreach/-/foreach-2.0.5.tgz#0bee005018aeb260d0a3af3ae658dd0136ec1b99"
+
+forever-agent@~0.6.1:
+  version "0.6.1"
+  resolved "https://registry.yarnpkg.com/forever-agent/-/forever-agent-0.6.1.tgz#fbc71f0c41adeb37f96c577ad1ed42d8fdacca91"
+
+form-data@~2.1.1:
+  version "2.1.4"
+  resolved "https://registry.yarnpkg.com/form-data/-/form-data-2.1.4.tgz#33c183acf193276ecaa98143a69e94bfee1750d1"
+  dependencies:
+    asynckit "^0.4.0"
+    combined-stream "^1.0.5"
+    mime-types "^2.1.12"
+
+fs-exists-sync@^0.1.0:
+  version "0.1.0"
+  resolved "https://registry.yarnpkg.com/fs-exists-sync/-/fs-exists-sync-0.1.0.tgz#982d6893af918e72d08dec9e8673ff2b5a8d6add"
+
+fs-readdir-recursive@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/fs-readdir-recursive/-/fs-readdir-recursive-1.0.0.tgz#8cd1745c8b4f8a29c8caec392476921ba195f560"
+
+fs.realpath@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/fs.realpath/-/fs.realpath-1.0.0.tgz#1504ad2523158caa40db4a2787cb01411994ea4f"
+
+fsevents@^1.0.0:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/fsevents/-/fsevents-1.1.1.tgz#f19fd28f43eeaf761680e519a203c4d0b3d31aff"
+  dependencies:
+    nan "^2.3.0"
+    node-pre-gyp "^0.6.29"
+
+fstream-ignore@^1.0.5:
+  version "1.0.5"
+  resolved "https://registry.yarnpkg.com/fstream-ignore/-/fstream-ignore-1.0.5.tgz#9c31dae34767018fe1d249b24dada67d092da105"
+  dependencies:
+    fstream "^1.0.0"
+    inherits "2"
+    minimatch "^3.0.0"
+
+fstream@^1.0.0, fstream@^1.0.10, fstream@^1.0.2:
+  version "1.0.11"
+  resolved "https://registry.yarnpkg.com/fstream/-/fstream-1.0.11.tgz#5c1fb1f117477114f0632a0eb4b71b3cb0fd3171"
+  dependencies:
+    graceful-fs "^4.1.2"
+    inherits "~2.0.0"
+    mkdirp ">=0.5 0"
+    rimraf "2"
+
+function-bind@^1.0.2, function-bind@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/function-bind/-/function-bind-1.1.0.tgz#16176714c801798e4e8f2cf7f7529467bb4a5771"
+
+function.prototype.name@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/function.prototype.name/-/function.prototype.name-1.0.0.tgz#5f523ca64e491a5f95aba80cc1e391080a14482e"
+  dependencies:
+    define-properties "^1.1.2"
+    function-bind "^1.1.0"
+    is-callable "^1.1.2"
+
+gauge@~2.7.3:
+  version "2.7.4"
+  resolved "https://registry.yarnpkg.com/gauge/-/gauge-2.7.4.tgz#2c03405c7538c39d7eb37b317022e325fb018bf7"
+  dependencies:
+    aproba "^1.0.3"
+    console-control-strings "^1.0.0"
+    has-unicode "^2.0.0"
+    object-assign "^4.1.0"
+    signal-exit "^3.0.0"
+    string-width "^1.0.1"
+    strip-ansi "^3.0.1"
+    wide-align "^1.1.0"
+
+generate-function@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/generate-function/-/generate-function-2.0.0.tgz#6858fe7c0969b7d4e9093337647ac79f60dfbe74"
+
+generate-object-property@^1.1.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/generate-object-property/-/generate-object-property-1.2.0.tgz#9c0e1c40308ce804f4783618b937fa88f99d50d0"
+  dependencies:
+    is-property "^1.0.0"
+
+get-caller-file@^1.0.1:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/get-caller-file/-/get-caller-file-1.0.2.tgz#f702e63127e7e231c160a80c1554acb70d5047e5"
+
+getpass@^0.1.1:
+  version "0.1.7"
+  resolved "https://registry.yarnpkg.com/getpass/-/getpass-0.1.7.tgz#5eff8e3e684d569ae4cb2b1282604e8ba62149fa"
+  dependencies:
+    assert-plus "^1.0.0"
+
+glob-base@^0.3.0:
+  version "0.3.0"
+  resolved "https://registry.yarnpkg.com/glob-base/-/glob-base-0.3.0.tgz#dbb164f6221b1c0b1ccf82aea328b497df0ea3c4"
+  dependencies:
+    glob-parent "^2.0.0"
+    is-glob "^2.0.0"
+
+glob-parent@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/glob-parent/-/glob-parent-2.0.0.tgz#81383d72db054fcccf5336daa902f182f6edbb28"
+  dependencies:
+    is-glob "^2.0.0"
+
+glob@7.1.1, glob@^7.0.0, glob@^7.0.3, glob@^7.0.5, glob@^7.1.1:
+  version "7.1.1"
+  resolved "https://registry.yarnpkg.com/glob/-/glob-7.1.1.tgz#805211df04faaf1c63a3600306cdf5ade50b2ec8"
+  dependencies:
+    fs.realpath "^1.0.0"
+    inflight "^1.0.4"
+    inherits "2"
+    minimatch "^3.0.2"
+    once "^1.3.0"
+    path-is-absolute "^1.0.0"
+
+global-modules@^0.2.3:
+  version "0.2.3"
+  resolved "https://registry.yarnpkg.com/global-modules/-/global-modules-0.2.3.tgz#ea5a3bed42c6d6ce995a4f8a1269b5dae223828d"
+  dependencies:
+    global-prefix "^0.1.4"
+    is-windows "^0.2.0"
+
+global-prefix@^0.1.4:
+  version "0.1.5"
+  resolved "https://registry.yarnpkg.com/global-prefix/-/global-prefix-0.1.5.tgz#8d3bc6b8da3ca8112a160d8d496ff0462bfef78f"
+  dependencies:
+    homedir-polyfill "^1.0.0"
+    ini "^1.3.4"
+    is-windows "^0.2.0"
+    which "^1.2.12"
+
+globals@^9.0.0, globals@^9.14.0:
+  version "9.17.0"
+  resolved "https://registry.yarnpkg.com/globals/-/globals-9.17.0.tgz#0c0ca696d9b9bb694d2e5470bd37777caad50286"
+
+globby@^5.0.0:
+  version "5.0.0"
+  resolved "https://registry.yarnpkg.com/globby/-/globby-5.0.0.tgz#ebd84667ca0dbb330b99bcfc68eac2bc54370e0d"
+  dependencies:
+    array-union "^1.0.1"
+    arrify "^1.0.0"
+    glob "^7.0.3"
+    object-assign "^4.0.1"
+    pify "^2.0.0"
+    pinkie-promise "^2.0.0"
+
+graceful-fs@^4.1.11, graceful-fs@^4.1.2, graceful-fs@^4.1.4:
+  version "4.1.11"
+  resolved "https://registry.yarnpkg.com/graceful-fs/-/graceful-fs-4.1.11.tgz#0e8bdfe4d1ddb8854d64e04ea7c00e2a026e5658"
+
+"graceful-readlink@>= 1.0.0":
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/graceful-readlink/-/graceful-readlink-1.0.1.tgz#4cafad76bc62f02fa039b2f94e9a3dd3a391a725"
+
+growl@1.9.2:
+  version "1.9.2"
+  resolved "https://registry.yarnpkg.com/growl/-/growl-1.9.2.tgz#0ea7743715db8d8de2c5ede1775e1b45ac85c02f"
+
+growly@^1.3.0:
+  version "1.3.0"
+  resolved "https://registry.yarnpkg.com/growly/-/growly-1.3.0.tgz#f10748cbe76af964b7c96c93c6bcc28af120c081"
+
+handlebars@^4.0.3:
+  version "4.0.10"
+  resolved "https://registry.yarnpkg.com/handlebars/-/handlebars-4.0.10.tgz#3d30c718b09a3d96f23ea4cc1f403c4d3ba9ff4f"
+  dependencies:
+    async "^1.4.0"
+    optimist "^0.6.1"
+    source-map "^0.4.4"
+  optionalDependencies:
+    uglify-js "^2.6"
+
+har-schema@^1.0.5:
+  version "1.0.5"
+  resolved "https://registry.yarnpkg.com/har-schema/-/har-schema-1.0.5.tgz#d263135f43307c02c602afc8fe95970c0151369e"
+
+har-validator@~4.2.1:
+  version "4.2.1"
+  resolved "https://registry.yarnpkg.com/har-validator/-/har-validator-4.2.1.tgz#33481d0f1bbff600dd203d75812a6a5fba002e2a"
+  dependencies:
+    ajv "^4.9.1"
+    har-schema "^1.0.5"
+
+has-ansi@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/has-ansi/-/has-ansi-2.0.0.tgz#34f5049ce1ecdf2b0649af3ef24e45ed35416d91"
+  dependencies:
+    ansi-regex "^2.0.0"
+
+has-flag@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/has-flag/-/has-flag-1.0.0.tgz#9d9e793165ce017a00f00418c43f942a7b1d11fa"
+
+has-glob@^0.1.1:
+  version "0.1.1"
+  resolved "https://registry.yarnpkg.com/has-glob/-/has-glob-0.1.1.tgz#a261c4c2a6c667e0c77b700a7f297c39ef3aa589"
+  dependencies:
+    is-glob "^2.0.1"
+
+has-unicode@^2.0.0:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/has-unicode/-/has-unicode-2.0.1.tgz#e0e6fe6a28cf51138855e086d1691e771de2a8b9"
+
+has@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/has/-/has-1.0.1.tgz#8461733f538b0837c9361e39a9ab9e9704dc2f28"
+  dependencies:
+    function-bind "^1.0.2"
+
+hawk@~3.1.3:
+  version "3.1.3"
+  resolved "https://registry.yarnpkg.com/hawk/-/hawk-3.1.3.tgz#078444bd7c1640b0fe540d2c9b73d59678e8e1c4"
+  dependencies:
+    boom "2.x.x"
+    cryptiles "2.x.x"
+    hoek "2.x.x"
+    sntp "1.x.x"
+
+hoek@2.x.x:
+  version "2.16.3"
+  resolved "https://registry.yarnpkg.com/hoek/-/hoek-2.16.3.tgz#20bb7403d3cea398e91dc4710a8ff1b8274a25ed"
+
+home-or-tmp@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/home-or-tmp/-/home-or-tmp-2.0.0.tgz#e36c3f2d2cae7d746a857e38d18d5f32a7882db8"
+  dependencies:
+    os-homedir "^1.0.0"
+    os-tmpdir "^1.0.1"
+
+homedir-polyfill@^1.0.0:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/homedir-polyfill/-/homedir-polyfill-1.0.1.tgz#4c2bbc8a758998feebf5ed68580f76d46768b4bc"
+  dependencies:
+    parse-passwd "^1.0.0"
+
+hosted-git-info@^2.1.4:
+  version "2.4.2"
+  resolved "https://registry.yarnpkg.com/hosted-git-info/-/hosted-git-info-2.4.2.tgz#0076b9f46a270506ddbaaea56496897460612a67"
+
+html-encoding-sniffer@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/html-encoding-sniffer/-/html-encoding-sniffer-1.0.1.tgz#79bf7a785ea495fe66165e734153f363ff5437da"
+  dependencies:
+    whatwg-encoding "^1.0.1"
+
+htmlparser2@^3.9.1:
+  version "3.9.2"
+  resolved "https://registry.yarnpkg.com/htmlparser2/-/htmlparser2-3.9.2.tgz#1bdf87acca0f3f9e53fa4fcceb0f4b4cbb00b338"
+  dependencies:
+    domelementtype "^1.3.0"
+    domhandler "^2.3.0"
+    domutils "^1.5.1"
+    entities "^1.1.1"
+    inherits "^2.0.1"
+    readable-stream "^2.0.2"
+
+http-signature@~1.1.0:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/http-signature/-/http-signature-1.1.1.tgz#df72e267066cd0ac67fb76adf8e134a8fbcf91bf"
+  dependencies:
+    assert-plus "^0.2.0"
+    jsprim "^1.2.2"
+    sshpk "^1.7.0"
+
+iconv-lite@0.4.13:
+  version "0.4.13"
+  resolved "https://registry.yarnpkg.com/iconv-lite/-/iconv-lite-0.4.13.tgz#1f88aba4ab0b1508e8312acc39345f36e992e2f2"
+
+iconv-lite@^0.4.17, iconv-lite@~0.4.13:
+  version "0.4.17"
+  resolved "https://registry.yarnpkg.com/iconv-lite/-/iconv-lite-0.4.17.tgz#4fdaa3b38acbc2c031b045d0edcdfe1ecab18c8d"
+
+ignore@^3.2.0:
+  version "3.3.3"
+  resolved "https://registry.yarnpkg.com/ignore/-/ignore-3.3.3.tgz#432352e57accd87ab3110e82d3fea0e47812156d"
+
+imurmurhash@^0.1.4:
+  version "0.1.4"
+  resolved "https://registry.yarnpkg.com/imurmurhash/-/imurmurhash-0.1.4.tgz#9218b9b2b928a238b13dc4fb6b6d576f231453ea"
+
+inflight@^1.0.4:
+  version "1.0.6"
+  resolved "https://registry.yarnpkg.com/inflight/-/inflight-1.0.6.tgz#49bd6331d7d02d0c09bc910a1075ba8165b56df9"
+  dependencies:
+    once "^1.3.0"
+    wrappy "1"
+
+inherits@2, inherits@^2.0.1, inherits@^2.0.3, inherits@~2.0.0, inherits@~2.0.1:
+  version "2.0.3"
+  resolved "https://registry.yarnpkg.com/inherits/-/inherits-2.0.3.tgz#633c2c83e3da42a502f52466022480f4208261de"
+
+ini@^1.3.4, ini@~1.3.0:
+  version "1.3.4"
+  resolved "https://registry.yarnpkg.com/ini/-/ini-1.3.4.tgz#0537cb79daf59b59a1a517dff706c86ec039162e"
+
+inquirer@^0.12.0:
+  version "0.12.0"
+  resolved "https://registry.yarnpkg.com/inquirer/-/inquirer-0.12.0.tgz#1ef2bfd63504df0bc75785fff8c2c41df12f077e"
+  dependencies:
+    ansi-escapes "^1.1.0"
+    ansi-regex "^2.0.0"
+    chalk "^1.0.0"
+    cli-cursor "^1.0.1"
+    cli-width "^2.0.0"
+    figures "^1.3.5"
+    lodash "^4.3.0"
+    readline2 "^1.0.1"
+    run-async "^0.1.0"
+    rx-lite "^3.1.2"
+    string-width "^1.0.1"
+    strip-ansi "^3.0.0"
+    through "^2.3.6"
+
+inquirer@^3.0.6:
+  version "3.0.6"
+  resolved "https://registry.yarnpkg.com/inquirer/-/inquirer-3.0.6.tgz#e04aaa9d05b7a3cb9b0f407d04375f0447190347"
+  dependencies:
+    ansi-escapes "^1.1.0"
+    chalk "^1.0.0"
+    cli-cursor "^2.1.0"
+    cli-width "^2.0.0"
+    external-editor "^2.0.1"
+    figures "^2.0.0"
+    lodash "^4.3.0"
+    mute-stream "0.0.7"
+    run-async "^2.2.0"
+    rx "^4.1.0"
+    string-width "^2.0.0"
+    strip-ansi "^3.0.0"
+    through "^2.3.6"
+
+interpret@^1.0.0:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/interpret/-/interpret-1.0.3.tgz#cbc35c62eeee73f19ab7b10a801511401afc0f90"
+
+invariant@^2.2.0, invariant@^2.2.2:
+  version "2.2.2"
+  resolved "https://registry.yarnpkg.com/invariant/-/invariant-2.2.2.tgz#9e1f56ac0acdb6bf303306f338be3b204ae60360"
+  dependencies:
+    loose-envify "^1.0.0"
+
+invert-kv@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/invert-kv/-/invert-kv-1.0.0.tgz#104a8e4aaca6d3d8cd157a8ef8bfab2d7a3ffdb6"
+
+is-absolute@^0.2.5:
+  version "0.2.6"
+  resolved "https://registry.yarnpkg.com/is-absolute/-/is-absolute-0.2.6.tgz#20de69f3db942ef2d87b9c2da36f172235b1b5eb"
+  dependencies:
+    is-relative "^0.2.1"
+    is-windows "^0.2.0"
+
+is-accessor-descriptor@^0.1.6:
+  version "0.1.6"
+  resolved "https://registry.yarnpkg.com/is-accessor-descriptor/-/is-accessor-descriptor-0.1.6.tgz#a9e12cb3ae8d876727eeef3843f8a0897b5c98d6"
+  dependencies:
+    kind-of "^3.0.2"
+
+is-arrayish@^0.2.1:
+  version "0.2.1"
+  resolved "https://registry.yarnpkg.com/is-arrayish/-/is-arrayish-0.2.1.tgz#77c99840527aa8ecb1a8ba697b80645a7a926a9d"
+
+is-binary-path@^1.0.0:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/is-binary-path/-/is-binary-path-1.0.1.tgz#75f16642b480f187a711c814161fd3a4a7655898"
+  dependencies:
+    binary-extensions "^1.0.0"
+
+is-buffer@^1.1.0, is-buffer@^1.1.3, is-buffer@^1.1.5:
+  version "1.1.5"
+  resolved "https://registry.yarnpkg.com/is-buffer/-/is-buffer-1.1.5.tgz#1f3b26ef613b214b88cbca23cc6c01d87961eecc"
+
+is-builtin-module@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/is-builtin-module/-/is-builtin-module-1.0.0.tgz#540572d34f7ac3119f8f76c30cbc1b1e037affbe"
+  dependencies:
+    builtin-modules "^1.0.0"
+
+is-callable@^1.1.1, is-callable@^1.1.2, is-callable@^1.1.3:
+  version "1.1.3"
+  resolved "https://registry.yarnpkg.com/is-callable/-/is-callable-1.1.3.tgz#86eb75392805ddc33af71c92a0eedf74ee7604b2"
+
+is-ci@^1.0.10:
+  version "1.0.10"
+  resolved "https://registry.yarnpkg.com/is-ci/-/is-ci-1.0.10.tgz#f739336b2632365061a9d48270cd56ae3369318e"
+  dependencies:
+    ci-info "^1.0.0"
+
+is-data-descriptor@^0.1.4:
+  version "0.1.4"
+  resolved "https://registry.yarnpkg.com/is-data-descriptor/-/is-data-descriptor-0.1.4.tgz#0b5ee648388e2c860282e793f1856fec3f301b56"
+  dependencies:
+    kind-of "^3.0.2"
+
+is-date-object@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/is-date-object/-/is-date-object-1.0.1.tgz#9aa20eb6aeebbff77fbd33e74ca01b33581d3a16"
+
+is-descriptor@^0.1.0:
+  version "0.1.5"
+  resolved "https://registry.yarnpkg.com/is-descriptor/-/is-descriptor-0.1.5.tgz#e3fb8b4ab65f3a37373388e18b401d78c58cbea7"
+  dependencies:
+    is-accessor-descriptor "^0.1.6"
+    is-data-descriptor "^0.1.4"
+    kind-of "^3.0.2"
+    lazy-cache "^2.0.2"
+
+is-dotfile@^1.0.0:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/is-dotfile/-/is-dotfile-1.0.2.tgz#2c132383f39199f8edc268ca01b9b007d205cc4d"
+
+is-equal-shallow@^0.1.3:
+  version "0.1.3"
+  resolved "https://registry.yarnpkg.com/is-equal-shallow/-/is-equal-shallow-0.1.3.tgz#2238098fc221de0bcfa5d9eac4c45d638aa1c534"
+  dependencies:
+    is-primitive "^2.0.0"
+
+is-extendable@^0.1.0, is-extendable@^0.1.1:
+  version "0.1.1"
+  resolved "https://registry.yarnpkg.com/is-extendable/-/is-extendable-0.1.1.tgz#62b110e289a471418e3ec36a617d472e301dfc89"
+
+is-extglob@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/is-extglob/-/is-extglob-1.0.0.tgz#ac468177c4943405a092fc8f29760c6ffc6206c0"
+
+is-finite@^1.0.0:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/is-finite/-/is-finite-1.0.2.tgz#cc6677695602be550ef11e8b4aa6305342b6d0aa"
+  dependencies:
+    number-is-nan "^1.0.0"
+
+is-fullwidth-code-point@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/is-fullwidth-code-point/-/is-fullwidth-code-point-1.0.0.tgz#ef9e31386f031a7f0d643af82fde50c457ef00cb"
+  dependencies:
+    number-is-nan "^1.0.0"
+
+is-fullwidth-code-point@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/is-fullwidth-code-point/-/is-fullwidth-code-point-2.0.0.tgz#a3b30a5c4f199183167aaab93beefae3ddfb654f"
+
+is-glob@^2.0.0, is-glob@^2.0.1:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/is-glob/-/is-glob-2.0.1.tgz#d096f926a3ded5600f3fdfd91198cb0888c2d863"
+  dependencies:
+    is-extglob "^1.0.0"
+
+is-module@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/is-module/-/is-module-1.0.0.tgz#3258fb69f78c14d5b815d664336b4cffb6441591"
+
+is-my-json-valid@^2.10.0:
+  version "2.16.0"
+  resolved "https://registry.yarnpkg.com/is-my-json-valid/-/is-my-json-valid-2.16.0.tgz#f079dd9bfdae65ee2038aae8acbc86ab109e3693"
+  dependencies:
+    generate-function "^2.0.0"
+    generate-object-property "^1.1.0"
+    jsonpointer "^4.0.0"
+    xtend "^4.0.0"
+
+is-number@^2.0.2, is-number@^2.1.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/is-number/-/is-number-2.1.0.tgz#01fcbbb393463a548f2f466cce16dece49db908f"
+  dependencies:
+    kind-of "^3.0.2"
+
+is-path-cwd@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/is-path-cwd/-/is-path-cwd-1.0.0.tgz#d225ec23132e89edd38fda767472e62e65f1106d"
+
+is-path-in-cwd@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/is-path-in-cwd/-/is-path-in-cwd-1.0.0.tgz#6477582b8214d602346094567003be8a9eac04dc"
+  dependencies:
+    is-path-inside "^1.0.0"
+
+is-path-inside@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/is-path-inside/-/is-path-inside-1.0.0.tgz#fc06e5a1683fbda13de667aff717bbc10a48f37f"
+  dependencies:
+    path-is-inside "^1.0.1"
+
+is-posix-bracket@^0.1.0:
+  version "0.1.1"
+  resolved "https://registry.yarnpkg.com/is-posix-bracket/-/is-posix-bracket-0.1.1.tgz#3334dc79774368e92f016e6fbc0a88f5cd6e6bc4"
+
+is-primitive@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/is-primitive/-/is-primitive-2.0.0.tgz#207bab91638499c07b2adf240a41a87210034575"
+
+is-promise@^2.1.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/is-promise/-/is-promise-2.1.0.tgz#79a2a9ece7f096e80f36d2b2f3bc16c1ff4bf3fa"
+
+is-property@^1.0.0:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/is-property/-/is-property-1.0.2.tgz#57fe1c4e48474edd65b09911f26b1cd4095dda84"
+
+is-regex@^1.0.3:
+  version "1.0.4"
+  resolved "https://registry.yarnpkg.com/is-regex/-/is-regex-1.0.4.tgz#5517489b547091b0930e095654ced25ee97e9491"
+  dependencies:
+    has "^1.0.1"
+
+is-relative@^0.2.1:
+  version "0.2.1"
+  resolved "https://registry.yarnpkg.com/is-relative/-/is-relative-0.2.1.tgz#d27f4c7d516d175fb610db84bbeef23c3bc97aa5"
+  dependencies:
+    is-unc-path "^0.1.1"
+
+is-resolvable@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/is-resolvable/-/is-resolvable-1.0.0.tgz#8df57c61ea2e3c501408d100fb013cf8d6e0cc62"
+  dependencies:
+    tryit "^1.0.1"
+
+is-stream@^1.0.1:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/is-stream/-/is-stream-1.1.0.tgz#12d4a3dd4e68e0b79ceb8dbc84173ae80d91ca44"
+
+is-subset@^0.1.1:
+  version "0.1.1"
+  resolved "https://registry.yarnpkg.com/is-subset/-/is-subset-0.1.1.tgz#8a59117d932de1de00f245fcdd39ce43f1e939a6"
+
+is-symbol@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/is-symbol/-/is-symbol-1.0.1.tgz#3cc59f00025194b6ab2e38dbae6689256b660572"
+
+is-typedarray@~1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/is-typedarray/-/is-typedarray-1.0.0.tgz#e479c80858df0c1b11ddda6940f96011fcda4a9a"
+
+is-unc-path@^0.1.1:
+  version "0.1.2"
+  resolved "https://registry.yarnpkg.com/is-unc-path/-/is-unc-path-0.1.2.tgz#6ab053a72573c10250ff416a3814c35178af39b9"
+  dependencies:
+    unc-path-regex "^0.1.0"
+
+is-utf8@^0.2.0:
+  version "0.2.1"
+  resolved "https://registry.yarnpkg.com/is-utf8/-/is-utf8-0.2.1.tgz#4b0da1442104d1b336340e80797e865cf39f7d72"
+
+is-valid-glob@^0.3.0:
+  version "0.3.0"
+  resolved "https://registry.yarnpkg.com/is-valid-glob/-/is-valid-glob-0.3.0.tgz#d4b55c69f51886f9b65c70d6c2622d37e29f48fe"
+
+is-windows@^0.2.0:
+  version "0.2.0"
+  resolved "https://registry.yarnpkg.com/is-windows/-/is-windows-0.2.0.tgz#de1aa6d63ea29dd248737b69f1ff8b8002d2108c"
+
+isarray@1.0.0, isarray@^1.0.0, isarray@~1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/isarray/-/isarray-1.0.0.tgz#bb935d48582cba168c06834957a54a3e07124f11"
+
+isexe@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/isexe/-/isexe-2.0.0.tgz#e8fbf374dc556ff8947a10dcb0572d633f2cfa10"
+
+isobject@^2.0.0, isobject@^2.1.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/isobject/-/isobject-2.1.0.tgz#f065561096a3f1da2ef46272f815c840d87e0c89"
+  dependencies:
+    isarray "1.0.0"
+
+isomorphic-fetch@^2.1.1:
+  version "2.2.1"
+  resolved "https://registry.yarnpkg.com/isomorphic-fetch/-/isomorphic-fetch-2.2.1.tgz#611ae1acf14f5e81f729507472819fe9733558a9"
+  dependencies:
+    node-fetch "^1.0.1"
+    whatwg-fetch ">=0.10.0"
+
+isstream@~0.1.2:
+  version "0.1.2"
+  resolved "https://registry.yarnpkg.com/isstream/-/isstream-0.1.2.tgz#47e63f7af55afa6f92e1500e690eb8b8529c099a"
+
+istanbul-api@^1.1.1:
+  version "1.1.8"
+  resolved "https://registry.yarnpkg.com/istanbul-api/-/istanbul-api-1.1.8.tgz#a844e55c6f9aeee292e7f42942196f60b23dc93e"
+  dependencies:
+    async "^2.1.4"
+    fileset "^2.0.2"
+    istanbul-lib-coverage "^1.1.0"
+    istanbul-lib-hook "^1.0.6"
+    istanbul-lib-instrument "^1.7.1"
+    istanbul-lib-report "^1.1.0"
+    istanbul-lib-source-maps "^1.2.0"
+    istanbul-reports "^1.1.0"
+    js-yaml "^3.7.0"
+    mkdirp "^0.5.1"
+    once "^1.4.0"
+
+istanbul-lib-coverage@^1.0.1, istanbul-lib-coverage@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/istanbul-lib-coverage/-/istanbul-lib-coverage-1.1.0.tgz#caca19decaef3525b5d6331d701f3f3b7ad48528"
+
+istanbul-lib-hook@^1.0.6:
+  version "1.0.6"
+  resolved "https://registry.yarnpkg.com/istanbul-lib-hook/-/istanbul-lib-hook-1.0.6.tgz#c0866d1e81cf2d5319249510131fc16dee49231f"
+  dependencies:
+    append-transform "^0.4.0"
+
+istanbul-lib-instrument@^1.4.2, istanbul-lib-instrument@^1.7.1:
+  version "1.7.1"
+  resolved "https://registry.yarnpkg.com/istanbul-lib-instrument/-/istanbul-lib-instrument-1.7.1.tgz#169e31bc62c778851a99439dd99c3cc12184d360"
+  dependencies:
+    babel-generator "^6.18.0"
+    babel-template "^6.16.0"
+    babel-traverse "^6.18.0"
+    babel-types "^6.18.0"
+    babylon "^6.13.0"
+    istanbul-lib-coverage "^1.1.0"
+    semver "^5.3.0"
+
+istanbul-lib-report@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/istanbul-lib-report/-/istanbul-lib-report-1.1.0.tgz#444c4ecca9afa93cf584f56b10f195bf768c0770"
+  dependencies:
+    istanbul-lib-coverage "^1.1.0"
+    mkdirp "^0.5.1"
+    path-parse "^1.0.5"
+    supports-color "^3.1.2"
+
+istanbul-lib-source-maps@^1.1.0, istanbul-lib-source-maps@^1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/istanbul-lib-source-maps/-/istanbul-lib-source-maps-1.2.0.tgz#8c7706d497e26feeb6af3e0c28fd5b0669598d0e"
+  dependencies:
+    debug "^2.6.3"
+    istanbul-lib-coverage "^1.1.0"
+    mkdirp "^0.5.1"
+    rimraf "^2.6.1"
+    source-map "^0.5.3"
+
+istanbul-reports@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/istanbul-reports/-/istanbul-reports-1.1.0.tgz#1ef3b795889219cfb5fad16365f6ce108d5f8c66"
+  dependencies:
+    handlebars "^4.0.3"
+
+jest-changed-files@^20.0.3:
+  version "20.0.3"
+  resolved "https://registry.yarnpkg.com/jest-changed-files/-/jest-changed-files-20.0.3.tgz#9394d5cc65c438406149bef1bf4d52b68e03e3f8"
+
+jest-cli@^20.0.4:
+  version "20.0.4"
+  resolved "https://registry.yarnpkg.com/jest-cli/-/jest-cli-20.0.4.tgz#e532b19d88ae5bc6c417e8b0593a6fe954b1dc93"
+  dependencies:
+    ansi-escapes "^1.4.0"
+    callsites "^2.0.0"
+    chalk "^1.1.3"
+    graceful-fs "^4.1.11"
+    is-ci "^1.0.10"
+    istanbul-api "^1.1.1"
+    istanbul-lib-coverage "^1.0.1"
+    istanbul-lib-instrument "^1.4.2"
+    istanbul-lib-source-maps "^1.1.0"
+    jest-changed-files "^20.0.3"
+    jest-config "^20.0.4"
+    jest-docblock "^20.0.3"
+    jest-environment-jsdom "^20.0.3"
+    jest-haste-map "^20.0.4"
+    jest-jasmine2 "^20.0.4"
+    jest-message-util "^20.0.3"
+    jest-regex-util "^20.0.3"
+    jest-resolve-dependencies "^20.0.3"
+    jest-runtime "^20.0.4"
+    jest-snapshot "^20.0.3"
+    jest-util "^20.0.3"
+    micromatch "^2.3.11"
+    node-notifier "^5.0.2"
+    pify "^2.3.0"
+    slash "^1.0.0"
+    string-length "^1.0.1"
+    throat "^3.0.0"
+    which "^1.2.12"
+    worker-farm "^1.3.1"
+    yargs "^7.0.2"
+
+jest-config@^20.0.4:
+  version "20.0.4"
+  resolved "https://registry.yarnpkg.com/jest-config/-/jest-config-20.0.4.tgz#e37930ab2217c913605eff13e7bd763ec48faeea"
+  dependencies:
+    chalk "^1.1.3"
+    glob "^7.1.1"
+    jest-environment-jsdom "^20.0.3"
+    jest-environment-node "^20.0.3"
+    jest-jasmine2 "^20.0.4"
+    jest-matcher-utils "^20.0.3"
+    jest-regex-util "^20.0.3"
+    jest-resolve "^20.0.4"
+    jest-validate "^20.0.3"
+    pretty-format "^20.0.3"
+
+jest-diff@^20.0.3:
+  version "20.0.3"
+  resolved "https://registry.yarnpkg.com/jest-diff/-/jest-diff-20.0.3.tgz#81f288fd9e675f0fb23c75f1c2b19445fe586617"
+  dependencies:
+    chalk "^1.1.3"
+    diff "^3.2.0"
+    jest-matcher-utils "^20.0.3"
+    pretty-format "^20.0.3"
+
+jest-docblock@^20.0.3:
+  version "20.0.3"
+  resolved "https://registry.yarnpkg.com/jest-docblock/-/jest-docblock-20.0.3.tgz#17bea984342cc33d83c50fbe1545ea0efaa44712"
+
+jest-environment-jsdom@^20.0.3:
+  version "20.0.3"
+  resolved "https://registry.yarnpkg.com/jest-environment-jsdom/-/jest-environment-jsdom-20.0.3.tgz#048a8ac12ee225f7190417713834bb999787de99"
+  dependencies:
+    jest-mock "^20.0.3"
+    jest-util "^20.0.3"
+    jsdom "^9.12.0"
+
+jest-environment-node@^20.0.3:
+  version "20.0.3"
+  resolved "https://registry.yarnpkg.com/jest-environment-node/-/jest-environment-node-20.0.3.tgz#d488bc4612af2c246e986e8ae7671a099163d403"
+  dependencies:
+    jest-mock "^20.0.3"
+    jest-util "^20.0.3"
+
+jest-haste-map@^20.0.4:
+  version "20.0.4"
+  resolved "https://registry.yarnpkg.com/jest-haste-map/-/jest-haste-map-20.0.4.tgz#653eb55c889ce3c021f7b94693f20a4159badf03"
+  dependencies:
+    fb-watchman "^2.0.0"
+    graceful-fs "^4.1.11"
+    jest-docblock "^20.0.3"
+    micromatch "^2.3.11"
+    sane "~1.6.0"
+    worker-farm "^1.3.1"
+
+jest-jasmine2@^20.0.4:
+  version "20.0.4"
+  resolved "https://registry.yarnpkg.com/jest-jasmine2/-/jest-jasmine2-20.0.4.tgz#fcc5b1411780d911d042902ef1859e852e60d5e1"
+  dependencies:
+    chalk "^1.1.3"
+    graceful-fs "^4.1.11"
+    jest-diff "^20.0.3"
+    jest-matcher-utils "^20.0.3"
+    jest-matchers "^20.0.3"
+    jest-message-util "^20.0.3"
+    jest-snapshot "^20.0.3"
+    once "^1.4.0"
+    p-map "^1.1.1"
+
+jest-matcher-utils@^20.0.3:
+  version "20.0.3"
+  resolved "https://registry.yarnpkg.com/jest-matcher-utils/-/jest-matcher-utils-20.0.3.tgz#b3a6b8e37ca577803b0832a98b164f44b7815612"
+  dependencies:
+    chalk "^1.1.3"
+    pretty-format "^20.0.3"
+
+jest-matchers@^20.0.3:
+  version "20.0.3"
+  resolved "https://registry.yarnpkg.com/jest-matchers/-/jest-matchers-20.0.3.tgz#ca69db1c32db5a6f707fa5e0401abb55700dfd60"
+  dependencies:
+    jest-diff "^20.0.3"
+    jest-matcher-utils "^20.0.3"
+    jest-message-util "^20.0.3"
+    jest-regex-util "^20.0.3"
+
+jest-message-util@^20.0.3:
+  version "20.0.3"
+  resolved "https://registry.yarnpkg.com/jest-message-util/-/jest-message-util-20.0.3.tgz#6aec2844306fcb0e6e74d5796c1006d96fdd831c"
+  dependencies:
+    chalk "^1.1.3"
+    micromatch "^2.3.11"
+    slash "^1.0.0"
+
+jest-mock@^20.0.3:
+  version "20.0.3"
+  resolved "https://registry.yarnpkg.com/jest-mock/-/jest-mock-20.0.3.tgz#8bc070e90414aa155c11a8d64c869a0d5c71da59"
+
+jest-regex-util@^20.0.3:
+  version "20.0.3"
+  resolved "https://registry.yarnpkg.com/jest-regex-util/-/jest-regex-util-20.0.3.tgz#85bbab5d133e44625b19faf8c6aa5122d085d762"
+
+jest-resolve-dependencies@^20.0.3:
+  version "20.0.3"
+  resolved "https://registry.yarnpkg.com/jest-resolve-dependencies/-/jest-resolve-dependencies-20.0.3.tgz#6e14a7b717af0f2cb3667c549de40af017b1723a"
+  dependencies:
+    jest-regex-util "^20.0.3"
+
+jest-resolve@^20.0.4:
+  version "20.0.4"
+  resolved "https://registry.yarnpkg.com/jest-resolve/-/jest-resolve-20.0.4.tgz#9448b3e8b6bafc15479444c6499045b7ffe597a5"
+  dependencies:
+    browser-resolve "^1.11.2"
+    is-builtin-module "^1.0.0"
+    resolve "^1.3.2"
+
+jest-runtime@^20.0.4:
+  version "20.0.4"
+  resolved "https://registry.yarnpkg.com/jest-runtime/-/jest-runtime-20.0.4.tgz#a2c802219c4203f754df1404e490186169d124d8"
+  dependencies:
+    babel-core "^6.0.0"
+    babel-jest "^20.0.3"
+    babel-plugin-istanbul "^4.0.0"
+    chalk "^1.1.3"
+    convert-source-map "^1.4.0"
+    graceful-fs "^4.1.11"
+    jest-config "^20.0.4"
+    jest-haste-map "^20.0.4"
+    jest-regex-util "^20.0.3"
+    jest-resolve "^20.0.4"
+    jest-util "^20.0.3"
+    json-stable-stringify "^1.0.1"
+    micromatch "^2.3.11"
+    strip-bom "3.0.0"
+    yargs "^7.0.2"
+
+jest-snapshot@^20.0.3:
+  version "20.0.3"
+  resolved "https://registry.yarnpkg.com/jest-snapshot/-/jest-snapshot-20.0.3.tgz#5b847e1adb1a4d90852a7f9f125086e187c76566"
+  dependencies:
+    chalk "^1.1.3"
+    jest-diff "^20.0.3"
+    jest-matcher-utils "^20.0.3"
+    jest-util "^20.0.3"
+    natural-compare "^1.4.0"
+    pretty-format "^20.0.3"
+
+jest-util@^20.0.3:
+  version "20.0.3"
+  resolved "https://registry.yarnpkg.com/jest-util/-/jest-util-20.0.3.tgz#0c07f7d80d82f4e5a67c6f8b9c3fe7f65cfd32ad"
+  dependencies:
+    chalk "^1.1.3"
+    graceful-fs "^4.1.11"
+    jest-message-util "^20.0.3"
+    jest-mock "^20.0.3"
+    jest-validate "^20.0.3"
+    leven "^2.1.0"
+    mkdirp "^0.5.1"
+
+jest-validate@^20.0.3:
+  version "20.0.3"
+  resolved "https://registry.yarnpkg.com/jest-validate/-/jest-validate-20.0.3.tgz#d0cfd1de4f579f298484925c280f8f1d94ec3cab"
+  dependencies:
+    chalk "^1.1.3"
+    jest-matcher-utils "^20.0.3"
+    leven "^2.1.0"
+    pretty-format "^20.0.3"
+
+jest@^20.0.4:
+  version "20.0.4"
+  resolved "https://registry.yarnpkg.com/jest/-/jest-20.0.4.tgz#3dd260c2989d6dad678b1e9cc4d91944f6d602ac"
+  dependencies:
+    jest-cli "^20.0.4"
+
+jodid25519@^1.0.0:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/jodid25519/-/jodid25519-1.0.2.tgz#06d4912255093419477d425633606e0e90782967"
+  dependencies:
+    jsbn "~0.1.0"
+
+js-tokens@^3.0.0:
+  version "3.0.1"
+  resolved "https://registry.yarnpkg.com/js-tokens/-/js-tokens-3.0.1.tgz#08e9f132484a2c45a30907e9dc4d5567b7f114d7"
+
+js-yaml@^3.5.1, js-yaml@^3.7.0:
+  version "3.8.4"
+  resolved "https://registry.yarnpkg.com/js-yaml/-/js-yaml-3.8.4.tgz#520b4564f86573ba96662af85a8cafa7b4b5a6f6"
+  dependencies:
+    argparse "^1.0.7"
+    esprima "^3.1.1"
+
+jsbn@~0.1.0:
+  version "0.1.1"
+  resolved "https://registry.yarnpkg.com/jsbn/-/jsbn-0.1.1.tgz#a5e654c2e5a2deb5f201d96cefbca80c0ef2f513"
+
+jschardet@^1.4.2:
+  version "1.4.2"
+  resolved "https://registry.yarnpkg.com/jschardet/-/jschardet-1.4.2.tgz#2aa107f142af4121d145659d44f50830961e699a"
+
+jsdom@^9.12.0:
+  version "9.12.0"
+  resolved "https://registry.yarnpkg.com/jsdom/-/jsdom-9.12.0.tgz#e8c546fffcb06c00d4833ca84410fed7f8a097d4"
+  dependencies:
+    abab "^1.0.3"
+    acorn "^4.0.4"
+    acorn-globals "^3.1.0"
+    array-equal "^1.0.0"
+    content-type-parser "^1.0.1"
+    cssom ">= 0.3.2 < 0.4.0"
+    cssstyle ">= 0.2.37 < 0.3.0"
+    escodegen "^1.6.1"
+    html-encoding-sniffer "^1.0.1"
+    nwmatcher ">= 1.3.9 < 2.0.0"
+    parse5 "^1.5.1"
+    request "^2.79.0"
+    sax "^1.2.1"
+    symbol-tree "^3.2.1"
+    tough-cookie "^2.3.2"
+    webidl-conversions "^4.0.0"
+    whatwg-encoding "^1.0.1"
+    whatwg-url "^4.3.0"
+    xml-name-validator "^2.0.1"
+
+jsesc@^1.3.0:
+  version "1.3.0"
+  resolved "https://registry.yarnpkg.com/jsesc/-/jsesc-1.3.0.tgz#46c3fec8c1892b12b0833db9bc7622176dbab34b"
+
+jsesc@~0.5.0:
+  version "0.5.0"
+  resolved "https://registry.yarnpkg.com/jsesc/-/jsesc-0.5.0.tgz#e7dee66e35d6fc16f710fe91d5cf69f70f08911d"
+
+json-schema@0.2.3:
+  version "0.2.3"
+  resolved "https://registry.yarnpkg.com/json-schema/-/json-schema-0.2.3.tgz#b480c892e59a2f05954ce727bd3f2a4e882f9e13"
+
+json-stable-stringify@^1.0.0, json-stable-stringify@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/json-stable-stringify/-/json-stable-stringify-1.0.1.tgz#9a759d39c5f2ff503fd5300646ed445f88c4f9af"
+  dependencies:
+    jsonify "~0.0.0"
+
+json-stringify-safe@^5.0.1, json-stringify-safe@~5.0.1:
+  version "5.0.1"
+  resolved "https://registry.yarnpkg.com/json-stringify-safe/-/json-stringify-safe-5.0.1.tgz#1296a2d58fd45f19a0f6ce01d65701e2c735b6eb"
+
+json3@3.3.2:
+  version "3.3.2"
+  resolved "https://registry.yarnpkg.com/json3/-/json3-3.3.2.tgz#3c0434743df93e2f5c42aee7b19bcb483575f4e1"
+
+json5@^0.5.0, json5@^0.5.1:
+  version "0.5.1"
+  resolved "https://registry.yarnpkg.com/json5/-/json5-0.5.1.tgz#1eade7acc012034ad84e2396767ead9fa5495821"
+
+jsonify@~0.0.0:
+  version "0.0.0"
+  resolved "https://registry.yarnpkg.com/jsonify/-/jsonify-0.0.0.tgz#2c74b6ee41d93ca51b7b5aaee8f503631d252a73"
+
+jsonpointer@^4.0.0:
+  version "4.0.1"
+  resolved "https://registry.yarnpkg.com/jsonpointer/-/jsonpointer-4.0.1.tgz#4fd92cb34e0e9db3c89c8622ecf51f9b978c6cb9"
+
+jsprim@^1.2.2:
+  version "1.4.0"
+  resolved "https://registry.yarnpkg.com/jsprim/-/jsprim-1.4.0.tgz#a3b87e40298d8c380552d8cc7628a0bb95a22918"
+  dependencies:
+    assert-plus "1.0.0"
+    extsprintf "1.0.2"
+    json-schema "0.2.3"
+    verror "1.3.6"
+
+jsx-ast-utils@^1.3.4, jsx-ast-utils@^1.4.0:
+  version "1.4.1"
+  resolved "https://registry.yarnpkg.com/jsx-ast-utils/-/jsx-ast-utils-1.4.1.tgz#3867213e8dd79bf1e8f2300c0cfc1efb182c0df1"
+
+kind-of@^3.0.2:
+  version "3.2.2"
+  resolved "https://registry.yarnpkg.com/kind-of/-/kind-of-3.2.2.tgz#31ea21a734bab9bbb0f32466d893aea51e4a3c64"
+  dependencies:
+    is-buffer "^1.1.5"
+
+lazy-cache@^0.2.3:
+  version "0.2.7"
+  resolved "https://registry.yarnpkg.com/lazy-cache/-/lazy-cache-0.2.7.tgz#7feddf2dcb6edb77d11ef1d117ab5ffdf0ab1b65"
+
+lazy-cache@^1.0.3:
+  version "1.0.4"
+  resolved "https://registry.yarnpkg.com/lazy-cache/-/lazy-cache-1.0.4.tgz#a1d78fc3a50474cb80845d3b3b6e1da49a446e8e"
+
+lazy-cache@^2.0.1, lazy-cache@^2.0.2:
+  version "2.0.2"
+  resolved "https://registry.yarnpkg.com/lazy-cache/-/lazy-cache-2.0.2.tgz#b9190a4f913354694840859f8a8f7084d8822264"
+  dependencies:
+    set-getter "^0.1.0"
+
+lcid@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/lcid/-/lcid-1.0.0.tgz#308accafa0bc483a3867b4b6f2b9506251d1b835"
+  dependencies:
+    invert-kv "^1.0.0"
+
+leven@^2.1.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/leven/-/leven-2.1.0.tgz#c2e7a9f772094dee9d34202ae8acce4687875580"
+
+levn@^0.3.0, levn@~0.3.0:
+  version "0.3.0"
+  resolved "https://registry.yarnpkg.com/levn/-/levn-0.3.0.tgz#3b09924edf9f083c0490fdd4c0bc4421e04764ee"
+  dependencies:
+    prelude-ls "~1.1.2"
+    type-check "~0.3.2"
+
+load-json-file@^1.0.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/load-json-file/-/load-json-file-1.1.0.tgz#956905708d58b4bab4c2261b04f59f31c99374c0"
+  dependencies:
+    graceful-fs "^4.1.2"
+    parse-json "^2.2.0"
+    pify "^2.0.0"
+    pinkie-promise "^2.0.0"
+    strip-bom "^2.0.0"
+
+load-json-file@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/load-json-file/-/load-json-file-2.0.0.tgz#7947e42149af80d696cbf797bcaabcfe1fe29ca8"
+  dependencies:
+    graceful-fs "^4.1.2"
+    parse-json "^2.2.0"
+    pify "^2.0.0"
+    strip-bom "^3.0.0"
+
+locate-path@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/locate-path/-/locate-path-2.0.0.tgz#2b568b265eec944c6d9c0de9c3dbbbca0354cd8e"
+  dependencies:
+    p-locate "^2.0.0"
+    path-exists "^3.0.0"
+
+lodash._baseassign@^3.0.0:
+  version "3.2.0"
+  resolved "https://registry.yarnpkg.com/lodash._baseassign/-/lodash._baseassign-3.2.0.tgz#8c38a099500f215ad09e59f1722fd0c52bfe0a4e"
+  dependencies:
+    lodash._basecopy "^3.0.0"
+    lodash.keys "^3.0.0"
+
+lodash._basecopy@^3.0.0:
+  version "3.0.1"
+  resolved "https://registry.yarnpkg.com/lodash._basecopy/-/lodash._basecopy-3.0.1.tgz#8da0e6a876cf344c0ad8a54882111dd3c5c7ca36"
+
+lodash._basecreate@^3.0.0:
+  version "3.0.3"
+  resolved "https://registry.yarnpkg.com/lodash._basecreate/-/lodash._basecreate-3.0.3.tgz#1bc661614daa7fc311b7d03bf16806a0213cf821"
+
+lodash._getnative@^3.0.0:
+  version "3.9.1"
+  resolved "https://registry.yarnpkg.com/lodash._getnative/-/lodash._getnative-3.9.1.tgz#570bc7dede46d61cdcde687d65d3eecbaa3aaff5"
+
+lodash._isiterateecall@^3.0.0:
+  version "3.0.9"
+  resolved "https://registry.yarnpkg.com/lodash._isiterateecall/-/lodash._isiterateecall-3.0.9.tgz#5203ad7ba425fae842460e696db9cf3e6aac057c"
+
+lodash.assignin@^4.0.9:
+  version "4.2.0"
+  resolved "https://registry.yarnpkg.com/lodash.assignin/-/lodash.assignin-4.2.0.tgz#ba8df5fb841eb0a3e8044232b0e263a8dc6a28a2"
+
+lodash.bind@^4.1.4:
+  version "4.2.1"
+  resolved "https://registry.yarnpkg.com/lodash.bind/-/lodash.bind-4.2.1.tgz#7ae3017e939622ac31b7d7d7dcb1b34db1690d35"
+
+lodash.cond@^4.3.0:
+  version "4.5.2"
+  resolved "https://registry.yarnpkg.com/lodash.cond/-/lodash.cond-4.5.2.tgz#f471a1da486be60f6ab955d17115523dd1d255d5"
+
+lodash.create@3.1.1:
+  version "3.1.1"
+  resolved "https://registry.yarnpkg.com/lodash.create/-/lodash.create-3.1.1.tgz#d7f2849f0dbda7e04682bb8cd72ab022461debe7"
+  dependencies:
+    lodash._baseassign "^3.0.0"
+    lodash._basecreate "^3.0.0"
+    lodash._isiterateecall "^3.0.0"
+
+lodash.defaults@^4.0.1:
+  version "4.2.0"
+  resolved "https://registry.yarnpkg.com/lodash.defaults/-/lodash.defaults-4.2.0.tgz#d09178716ffea4dde9e5fb7b37f6f0802274580c"
+
+lodash.filter@^4.4.0:
+  version "4.6.0"
+  resolved "https://registry.yarnpkg.com/lodash.filter/-/lodash.filter-4.6.0.tgz#668b1d4981603ae1cc5a6fa760143e480b4c4ace"
+
+lodash.flatten@^4.2.0:
+  version "4.4.0"
+  resolved "https://registry.yarnpkg.com/lodash.flatten/-/lodash.flatten-4.4.0.tgz#f31c22225a9632d2bbf8e4addbef240aa765a61f"
+
+lodash.foreach@^4.3.0:
+  version "4.5.0"
+  resolved "https://registry.yarnpkg.com/lodash.foreach/-/lodash.foreach-4.5.0.tgz#1a6a35eace401280c7f06dddec35165ab27e3e53"
+
+lodash.isarguments@^3.0.0:
+  version "3.1.0"
+  resolved "https://registry.yarnpkg.com/lodash.isarguments/-/lodash.isarguments-3.1.0.tgz#2f573d85c6a24289ff00663b491c1d338ff3458a"
+
+lodash.isarray@^3.0.0:
+  version "3.0.4"
+  resolved "https://registry.yarnpkg.com/lodash.isarray/-/lodash.isarray-3.0.4.tgz#79e4eb88c36a8122af86f844aa9bcd851b5fbb55"
+
+lodash.keys@^3.0.0:
+  version "3.1.2"
+  resolved "https://registry.yarnpkg.com/lodash.keys/-/lodash.keys-3.1.2.tgz#4dbc0472b156be50a0b286855d1bd0b0c656098a"
+  dependencies:
+    lodash._getnative "^3.0.0"
+    lodash.isarguments "^3.0.0"
+    lodash.isarray "^3.0.0"
+
+lodash.map@^4.4.0:
+  version "4.6.0"
+  resolved "https://registry.yarnpkg.com/lodash.map/-/lodash.map-4.6.0.tgz#771ec7839e3473d9c4cde28b19394c3562f4f6d3"
+
+lodash.merge@^4.4.0:
+  version "4.6.0"
+  resolved "https://registry.yarnpkg.com/lodash.merge/-/lodash.merge-4.6.0.tgz#69884ba144ac33fe699737a6086deffadd0f89c5"
+
+lodash.pick@^4.2.1:
+  version "4.4.0"
+  resolved "https://registry.yarnpkg.com/lodash.pick/-/lodash.pick-4.4.0.tgz#52f05610fff9ded422611441ed1fc123a03001b3"
+
+lodash.reduce@^4.4.0:
+  version "4.6.0"
+  resolved "https://registry.yarnpkg.com/lodash.reduce/-/lodash.reduce-4.6.0.tgz#f1ab6b839299ad48f784abbf476596f03b914d3b"
+
+lodash.reject@^4.4.0:
+  version "4.6.0"
+  resolved "https://registry.yarnpkg.com/lodash.reject/-/lodash.reject-4.6.0.tgz#80d6492dc1470864bbf583533b651f42a9f52415"
+
+lodash.some@^4.4.0:
+  version "4.6.0"
+  resolved "https://registry.yarnpkg.com/lodash.some/-/lodash.some-4.6.0.tgz#1bb9f314ef6b8baded13b549169b2a945eb68e4d"
+
+lodash@^3.10.0:
+  version "3.10.1"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-3.10.1.tgz#5bf45e8e49ba4189e17d482789dfd15bd140b7b6"
+
+lodash@^4.0.0, lodash@^4.14.0, lodash@^4.15.0, lodash@^4.17.0, lodash@^4.17.2, lodash@^4.2.0, lodash@^4.3.0:
+  version "4.17.4"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.4.tgz#78203a4d1c328ae1d86dca6460e369b57f4055ae"
+
+log-ok@^0.1.1:
+  version "0.1.1"
+  resolved "https://registry.yarnpkg.com/log-ok/-/log-ok-0.1.1.tgz#bea3dd36acd0b8a7240d78736b5b97c65444a334"
+  dependencies:
+    ansi-green "^0.1.1"
+    success-symbol "^0.1.0"
+
+log-update@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/log-update/-/log-update-2.0.0.tgz#7f4354d7be1be62b724fcbb3c4b94454c0db5e26"
+  dependencies:
+    ansi-escapes "^1.0.0"
+    cli-cursor "^2.0.0"
+    wrap-ansi "^2.1.0"
+
+longest@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/longest/-/longest-1.0.1.tgz#30a0b2da38f73770e8294a0d22e6625ed77d0097"
+
+loose-envify@^1.0.0, loose-envify@^1.1.0, loose-envify@^1.3.1:
+  version "1.3.1"
+  resolved "https://registry.yarnpkg.com/loose-envify/-/loose-envify-1.3.1.tgz#d1a8ad33fa9ce0e713d65fdd0ac8b748d478c848"
+  dependencies:
+    js-tokens "^3.0.0"
+
+magic-string@^0.15.2:
+  version "0.15.2"
+  resolved "https://registry.yarnpkg.com/magic-string/-/magic-string-0.15.2.tgz#0681d7388741bbc3addaa65060992624c6c09e9c"
+  dependencies:
+    vlq "^0.2.1"
+
+magic-string@^0.19.0:
+  version "0.19.1"
+  resolved "https://registry.yarnpkg.com/magic-string/-/magic-string-0.19.1.tgz#14d768013caf2ec8fdea16a49af82fc377e75201"
+  dependencies:
+    vlq "^0.2.1"
+
+makeerror@1.0.x:
+  version "1.0.11"
+  resolved "https://registry.yarnpkg.com/makeerror/-/makeerror-1.0.11.tgz#e01a5c9109f2af79660e4e8b9587790184f5a96c"
+  dependencies:
+    tmpl "1.0.x"
+
+matched@^0.4.1:
+  version "0.4.4"
+  resolved "https://registry.yarnpkg.com/matched/-/matched-0.4.4.tgz#56d7b7eb18033f0cf9bc52eb2090fac7dc1e89fa"
+  dependencies:
+    arr-union "^3.1.0"
+    async-array-reduce "^0.2.0"
+    extend-shallow "^2.0.1"
+    fs-exists-sync "^0.1.0"
+    glob "^7.0.5"
+    has-glob "^0.1.1"
+    is-valid-glob "^0.3.0"
+    lazy-cache "^2.0.1"
+    resolve-dir "^0.1.0"
+
+merge@^1.1.3:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/merge/-/merge-1.2.0.tgz#7531e39d4949c281a66b8c5a6e0265e8b05894da"
+
+micromatch@^2.1.5, micromatch@^2.3.11:
+  version "2.3.11"
+  resolved "https://registry.yarnpkg.com/micromatch/-/micromatch-2.3.11.tgz#86677c97d1720b363431d04d0d15293bd38c1565"
+  dependencies:
+    arr-diff "^2.0.0"
+    array-unique "^0.2.1"
+    braces "^1.8.2"
+    expand-brackets "^0.1.4"
+    extglob "^0.3.1"
+    filename-regex "^2.0.0"
+    is-extglob "^1.0.0"
+    is-glob "^2.0.1"
+    kind-of "^3.0.2"
+    normalize-path "^2.0.1"
+    object.omit "^2.0.0"
+    parse-glob "^3.0.4"
+    regex-cache "^0.4.2"
+
+mime-db@~1.27.0:
+  version "1.27.0"
+  resolved "https://registry.yarnpkg.com/mime-db/-/mime-db-1.27.0.tgz#820f572296bbd20ec25ed55e5b5de869e5436eb1"
+
+mime-types@^2.1.12, mime-types@~2.1.7:
+  version "2.1.15"
+  resolved "https://registry.yarnpkg.com/mime-types/-/mime-types-2.1.15.tgz#a4ebf5064094569237b8cf70046776d09fc92aed"
+  dependencies:
+    mime-db "~1.27.0"
+
+mimic-fn@^1.0.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/mimic-fn/-/mimic-fn-1.1.0.tgz#e667783d92e89dbd342818b5230b9d62a672ad18"
+
+minimatch@^3.0.0, minimatch@^3.0.2, minimatch@^3.0.3:
+  version "3.0.4"
+  resolved "https://registry.yarnpkg.com/minimatch/-/minimatch-3.0.4.tgz#5166e286457f03306064be5497e8dbb0c3d32083"
+  dependencies:
+    brace-expansion "^1.1.7"
+
+minimist@0.0.8, minimist@~0.0.1:
+  version "0.0.8"
+  resolved "https://registry.yarnpkg.com/minimist/-/minimist-0.0.8.tgz#857fcabfc3397d2625b8228262e86aa7a011b05d"
+
+minimist@^1.1.1, minimist@^1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/minimist/-/minimist-1.2.0.tgz#a35008b20f41383eec1fb914f4cd5df79a264284"
+
+mkdirp@0.5.1, "mkdirp@>=0.5 0", mkdirp@^0.5.0, mkdirp@^0.5.1:
+  version "0.5.1"
+  resolved "https://registry.yarnpkg.com/mkdirp/-/mkdirp-0.5.1.tgz#30057438eac6cf7f8c4767f38648d6697d75c903"
+  dependencies:
+    minimist "0.0.8"
+
+mocha@^3.4.2:
+  version "3.4.2"
+  resolved "https://registry.yarnpkg.com/mocha/-/mocha-3.4.2.tgz#d0ef4d332126dbf18d0d640c9b382dd48be97594"
+  dependencies:
+    browser-stdout "1.3.0"
+    commander "2.9.0"
+    debug "2.6.0"
+    diff "3.2.0"
+    escape-string-regexp "1.0.5"
+    glob "7.1.1"
+    growl "1.9.2"
+    json3 "3.3.2"
+    lodash.create "3.1.1"
+    mkdirp "0.5.1"
+    supports-color "3.1.2"
+
+ms@0.7.1:
+  version "0.7.1"
+  resolved "https://registry.yarnpkg.com/ms/-/ms-0.7.1.tgz#9cd13c03adbff25b65effde7ce864ee952017098"
+
+ms@0.7.2:
+  version "0.7.2"
+  resolved "https://registry.yarnpkg.com/ms/-/ms-0.7.2.tgz#ae25cf2512b3885a1d95d7f037868d8431124765"
+
+ms@2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/ms/-/ms-2.0.0.tgz#5608aeadfc00be6c2901df5f9861788de0d597c8"
+
+mute-stream@0.0.5:
+  version "0.0.5"
+  resolved "https://registry.yarnpkg.com/mute-stream/-/mute-stream-0.0.5.tgz#8fbfabb0a98a253d3184331f9e8deb7372fac6c0"
+
+mute-stream@0.0.7:
+  version "0.0.7"
+  resolved "https://registry.yarnpkg.com/mute-stream/-/mute-stream-0.0.7.tgz#3075ce93bc21b8fab43e1bc4da7e8115ed1e7bab"
+
+nan@^2.3.0:
+  version "2.6.2"
+  resolved "https://registry.yarnpkg.com/nan/-/nan-2.6.2.tgz#e4ff34e6c95fdfb5aecc08de6596f43605a7db45"
+
+natural-compare@^1.4.0:
+  version "1.4.0"
+  resolved "https://registry.yarnpkg.com/natural-compare/-/natural-compare-1.4.0.tgz#4abebfeed7541f2c27acfb29bdbbd15c8d5ba4f7"
+
+node-fetch@^1.0.1:
+  version "1.7.0"
+  resolved "https://registry.yarnpkg.com/node-fetch/-/node-fetch-1.7.0.tgz#3ff6c56544f9b7fb00682338bb55ee6f54a8a0ef"
+  dependencies:
+    encoding "^0.1.11"
+    is-stream "^1.0.1"
+
+node-int64@^0.4.0:
+  version "0.4.0"
+  resolved "https://registry.yarnpkg.com/node-int64/-/node-int64-0.4.0.tgz#87a9065cdb355d3182d8f94ce11188b825c68a3b"
+
+node-localstorage@^1.3.0:
+  version "1.3.0"
+  resolved "https://registry.yarnpkg.com/node-localstorage/-/node-localstorage-1.3.0.tgz#2e436aae8dcc9ace97b43c65c16c0d577be0a55c"
+  dependencies:
+    write-file-atomic "^1.1.4"
+
+node-notifier@^5.0.2:
+  version "5.1.2"
+  resolved "https://registry.yarnpkg.com/node-notifier/-/node-notifier-5.1.2.tgz#2fa9e12605fa10009d44549d6fcd8a63dde0e4ff"
+  dependencies:
+    growly "^1.3.0"
+    semver "^5.3.0"
+    shellwords "^0.1.0"
+    which "^1.2.12"
+
+node-pre-gyp@^0.6.29:
+  version "0.6.34"
+  resolved "https://registry.yarnpkg.com/node-pre-gyp/-/node-pre-gyp-0.6.34.tgz#94ad1c798a11d7fc67381b50d47f8cc18d9799f7"
+  dependencies:
+    mkdirp "^0.5.1"
+    nopt "^4.0.1"
+    npmlog "^4.0.2"
+    rc "^1.1.7"
+    request "^2.81.0"
+    rimraf "^2.6.1"
+    semver "^5.3.0"
+    tar "^2.2.1"
+    tar-pack "^3.4.0"
+
+nopt@^4.0.1:
+  version "4.0.1"
+  resolved "https://registry.yarnpkg.com/nopt/-/nopt-4.0.1.tgz#d0d4685afd5415193c8c7505602d0d17cd64474d"
+  dependencies:
+    abbrev "1"
+    osenv "^0.1.4"
+
+normalize-package-data@^2.3.2:
+  version "2.3.8"
+  resolved "https://registry.yarnpkg.com/normalize-package-data/-/normalize-package-data-2.3.8.tgz#d819eda2a9dedbd1ffa563ea4071d936782295bb"
+  dependencies:
+    hosted-git-info "^2.1.4"
+    is-builtin-module "^1.0.0"
+    semver "2 || 3 || 4 || 5"
+    validate-npm-package-license "^3.0.1"
+
+normalize-path@^2.0.1:
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/normalize-path/-/normalize-path-2.1.1.tgz#1ab28b556e198363a8c1a6f7e6fa20137fe6aed9"
+  dependencies:
+    remove-trailing-separator "^1.0.1"
+
+npmlog@^4.0.2:
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/npmlog/-/npmlog-4.1.0.tgz#dc59bee85f64f00ed424efb2af0783df25d1c0b5"
+  dependencies:
+    are-we-there-yet "~1.1.2"
+    console-control-strings "~1.1.0"
+    gauge "~2.7.3"
+    set-blocking "~2.0.0"
+
+nth-check@~1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/nth-check/-/nth-check-1.0.1.tgz#9929acdf628fc2c41098deab82ac580cf149aae4"
+  dependencies:
+    boolbase "~1.0.0"
+
+number-is-nan@^1.0.0:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/number-is-nan/-/number-is-nan-1.0.1.tgz#097b602b53422a522c1afb8790318336941a011d"
+
+"nwmatcher@>= 1.3.9 < 2.0.0":
+  version "1.4.0"
+  resolved "https://registry.yarnpkg.com/nwmatcher/-/nwmatcher-1.4.0.tgz#b4389362170e7ef9798c3c7716d80ebc0106fccf"
+
+oauth-sign@~0.8.1:
+  version "0.8.2"
+  resolved "https://registry.yarnpkg.com/oauth-sign/-/oauth-sign-0.8.2.tgz#46a6ab7f0aead8deae9ec0565780b7d4efeb9d43"
+
+object-assign@^4.0.1, object-assign@^4.1.0:
+  version "4.1.1"
+  resolved "https://registry.yarnpkg.com/object-assign/-/object-assign-4.1.1.tgz#2109adc7965887cfc05cbbd442cac8bfbb360863"
+
+object-is@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/object-is/-/object-is-1.0.1.tgz#0aa60ec9989a0b3ed795cf4d06f62cf1ad6539b6"
+
+object-keys@^1.0.10, object-keys@^1.0.8:
+  version "1.0.11"
+  resolved "https://registry.yarnpkg.com/object-keys/-/object-keys-1.0.11.tgz#c54601778ad560f1142ce0e01bcca8b56d13426d"
+
+object.assign@^4.0.4:
+  version "4.0.4"
+  resolved "https://registry.yarnpkg.com/object.assign/-/object.assign-4.0.4.tgz#b1c9cc044ef1b9fe63606fc141abbb32e14730cc"
+  dependencies:
+    define-properties "^1.1.2"
+    function-bind "^1.1.0"
+    object-keys "^1.0.10"
+
+object.entries@^1.0.3:
+  version "1.0.4"
+  resolved "https://registry.yarnpkg.com/object.entries/-/object.entries-1.0.4.tgz#1bf9a4dd2288f5b33f3a993d257661f05d161a5f"
+  dependencies:
+    define-properties "^1.1.2"
+    es-abstract "^1.6.1"
+    function-bind "^1.1.0"
+    has "^1.0.1"
+
+object.omit@^2.0.0:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/object.omit/-/object.omit-2.0.1.tgz#1a9c744829f39dbb858c76ca3579ae2a54ebd1fa"
+  dependencies:
+    for-own "^0.1.4"
+    is-extendable "^0.1.1"
+
+object.values@^1.0.3:
+  version "1.0.4"
+  resolved "https://registry.yarnpkg.com/object.values/-/object.values-1.0.4.tgz#e524da09b4f66ff05df457546ec72ac99f13069a"
+  dependencies:
+    define-properties "^1.1.2"
+    es-abstract "^1.6.1"
+    function-bind "^1.1.0"
+    has "^1.0.1"
+
+once@^1.3.0, once@^1.3.3, once@^1.4.0:
+  version "1.4.0"
+  resolved "https://registry.yarnpkg.com/once/-/once-1.4.0.tgz#583b1aa775961d4b113ac17d9c50baef9dd76bd1"
+  dependencies:
+    wrappy "1"
+
+onetime@^1.0.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/onetime/-/onetime-1.1.0.tgz#a1f7838f8314c516f05ecefcbc4ccfe04b4ed789"
+
+onetime@^2.0.0:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/onetime/-/onetime-2.0.1.tgz#067428230fd67443b2794b22bba528b6867962d4"
+  dependencies:
+    mimic-fn "^1.0.0"
+
+optimist@^0.6.1:
+  version "0.6.1"
+  resolved "https://registry.yarnpkg.com/optimist/-/optimist-0.6.1.tgz#da3ea74686fa21a19a111c326e90eb15a0196686"
+  dependencies:
+    minimist "~0.0.1"
+    wordwrap "~0.0.2"
+
+optionator@^0.8.1, optionator@^0.8.2:
+  version "0.8.2"
+  resolved "https://registry.yarnpkg.com/optionator/-/optionator-0.8.2.tgz#364c5e409d3f4d6301d6c0b4c05bba50180aeb64"
+  dependencies:
+    deep-is "~0.1.3"
+    fast-levenshtein "~2.0.4"
+    levn "~0.3.0"
+    prelude-ls "~1.1.2"
+    type-check "~0.3.2"
+    wordwrap "~1.0.0"
+
+os-homedir@^1.0.0, os-homedir@^1.0.1:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/os-homedir/-/os-homedir-1.0.2.tgz#ffbc4988336e0e833de0c168c7ef152121aa7fb3"
+
+os-locale@^1.4.0:
+  version "1.4.0"
+  resolved "https://registry.yarnpkg.com/os-locale/-/os-locale-1.4.0.tgz#20f9f17ae29ed345e8bde583b13d2009803c14d9"
+  dependencies:
+    lcid "^1.0.0"
+
+os-tmpdir@^1.0.0, os-tmpdir@^1.0.1, os-tmpdir@~1.0.1:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/os-tmpdir/-/os-tmpdir-1.0.2.tgz#bbe67406c79aa85c5cfec766fe5734555dfa1274"
+
+osenv@^0.1.4:
+  version "0.1.4"
+  resolved "https://registry.yarnpkg.com/osenv/-/osenv-0.1.4.tgz#42fe6d5953df06c8064be6f176c3d05aaaa34644"
+  dependencies:
+    os-homedir "^1.0.0"
+    os-tmpdir "^1.0.0"
+
+output-file-sync@^1.1.0:
+  version "1.1.2"
+  resolved "https://registry.yarnpkg.com/output-file-sync/-/output-file-sync-1.1.2.tgz#d0a33eefe61a205facb90092e826598d5245ce76"
+  dependencies:
+    graceful-fs "^4.1.4"
+    mkdirp "^0.5.1"
+    object-assign "^4.1.0"
+
+p-limit@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/p-limit/-/p-limit-1.1.0.tgz#b07ff2d9a5d88bec806035895a2bab66a27988bc"
+
+p-locate@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/p-locate/-/p-locate-2.0.0.tgz#20a0103b222a70c8fd39cc2e580680f3dde5ec43"
+  dependencies:
+    p-limit "^1.1.0"
+
+p-map@^1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/p-map/-/p-map-1.1.1.tgz#05f5e4ae97a068371bc2a5cc86bfbdbc19c4ae7a"
+
+parse-glob@^3.0.4:
+  version "3.0.4"
+  resolved "https://registry.yarnpkg.com/parse-glob/-/parse-glob-3.0.4.tgz#b2c376cfb11f35513badd173ef0bb6e3a388391c"
+  dependencies:
+    glob-base "^0.3.0"
+    is-dotfile "^1.0.0"
+    is-extglob "^1.0.0"
+    is-glob "^2.0.0"
+
+parse-json@^2.2.0:
+  version "2.2.0"
+  resolved "https://registry.yarnpkg.com/parse-json/-/parse-json-2.2.0.tgz#f480f40434ef80741f8469099f8dea18f55a4dc9"
+  dependencies:
+    error-ex "^1.2.0"
+
+parse-passwd@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/parse-passwd/-/parse-passwd-1.0.0.tgz#6d5b934a456993b23d37f40a382d6f1666a8e5c6"
+
+parse5@^1.5.1:
+  version "1.5.1"
+  resolved "https://registry.yarnpkg.com/parse5/-/parse5-1.5.1.tgz#9b7f3b0de32be78dc2401b17573ccaf0f6f59d94"
+
+path-exists@^2.0.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/path-exists/-/path-exists-2.1.0.tgz#0feb6c64f0fc518d9a754dd5efb62c7022761f4b"
+  dependencies:
+    pinkie-promise "^2.0.0"
+
+path-exists@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/path-exists/-/path-exists-3.0.0.tgz#ce0ebeaa5f78cb18925ea7d810d7b59b010fd515"
+
+path-is-absolute@^1.0.0:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/path-is-absolute/-/path-is-absolute-1.0.1.tgz#174b9268735534ffbc7ace6bf53a5a9e1b5c5f5f"
+
+path-is-inside@^1.0.1:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/path-is-inside/-/path-is-inside-1.0.2.tgz#365417dede44430d1c11af61027facf074bdfc53"
+
+path-parse@^1.0.5:
+  version "1.0.5"
+  resolved "https://registry.yarnpkg.com/path-parse/-/path-parse-1.0.5.tgz#3c1adf871ea9cd6c9431b6ea2bd74a0ff055c4c1"
+
+path-type@^1.0.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/path-type/-/path-type-1.1.0.tgz#59c44f7ee491da704da415da5a4070ba4f8fe441"
+  dependencies:
+    graceful-fs "^4.1.2"
+    pify "^2.0.0"
+    pinkie-promise "^2.0.0"
+
+path-type@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/path-type/-/path-type-2.0.0.tgz#f012ccb8415b7096fc2daa1054c3d72389594c73"
+  dependencies:
+    pify "^2.0.0"
+
+performance-now@^0.2.0:
+  version "0.2.0"
+  resolved "https://registry.yarnpkg.com/performance-now/-/performance-now-0.2.0.tgz#33ef30c5c77d4ea21c5a53869d91b56d8f2555e5"
+
+pify@^2.0.0, pify@^2.3.0:
+  version "2.3.0"
+  resolved "https://registry.yarnpkg.com/pify/-/pify-2.3.0.tgz#ed141a6ac043a849ea588498e7dca8b15330e90c"
+
+pinkie-promise@^2.0.0:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/pinkie-promise/-/pinkie-promise-2.0.1.tgz#2135d6dfa7a358c069ac9b178776288228450ffa"
+  dependencies:
+    pinkie "^2.0.0"
+
+pinkie@^2.0.0:
+  version "2.0.4"
+  resolved "https://registry.yarnpkg.com/pinkie/-/pinkie-2.0.4.tgz#72556b80cfa0d48a974e80e77248e80ed4f7f870"
+
+pkg-dir@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/pkg-dir/-/pkg-dir-1.0.0.tgz#7a4b508a8d5bb2d629d447056ff4e9c9314cf3d4"
+  dependencies:
+    find-up "^1.0.0"
+
+pluralize@^1.2.1:
+  version "1.2.1"
+  resolved "https://registry.yarnpkg.com/pluralize/-/pluralize-1.2.1.tgz#d1a21483fd22bb41e58a12fa3421823140897c45"
+
+prelude-ls@~1.1.2:
+  version "1.1.2"
+  resolved "https://registry.yarnpkg.com/prelude-ls/-/prelude-ls-1.1.2.tgz#21932a549f5e52ffd9a827f570e04be62a97da54"
+
+preserve@^0.2.0:
+  version "0.2.0"
+  resolved "https://registry.yarnpkg.com/preserve/-/preserve-0.2.0.tgz#815ed1f6ebc65926f865b310c0713bcb3315ce4b"
+
+pretty-format@^20.0.3:
+  version "20.0.3"
+  resolved "https://registry.yarnpkg.com/pretty-format/-/pretty-format-20.0.3.tgz#020e350a560a1fe1a98dc3beb6ccffb386de8b14"
+  dependencies:
+    ansi-regex "^2.1.1"
+    ansi-styles "^3.0.0"
+
+private@^0.1.6:
+  version "0.1.7"
+  resolved "https://registry.yarnpkg.com/private/-/private-0.1.7.tgz#68ce5e8a1ef0a23bb570cc28537b5332aba63ef1"
+
+process-nextick-args@~1.0.6:
+  version "1.0.7"
+  resolved "https://registry.yarnpkg.com/process-nextick-args/-/process-nextick-args-1.0.7.tgz#150e20b756590ad3f91093f25a4f2ad8bff30ba3"
+
+progress@^1.1.8:
+  version "1.1.8"
+  resolved "https://registry.yarnpkg.com/progress/-/progress-1.1.8.tgz#e260c78f6161cdd9b0e56cc3e0a85de17c7a57be"
+
+promise@^7.1.1:
+  version "7.1.1"
+  resolved "https://registry.yarnpkg.com/promise/-/promise-7.1.1.tgz#489654c692616b8aa55b0724fa809bb7db49c5bf"
+  dependencies:
+    asap "~2.0.3"
+
+prop-types@^15.5.4, prop-types@^15.5.7, prop-types@~15.5.7:
+  version "15.5.10"
+  resolved "https://registry.yarnpkg.com/prop-types/-/prop-types-15.5.10.tgz#2797dfc3126182e3a95e3dfbb2e893ddd7456154"
+  dependencies:
+    fbjs "^0.8.9"
+    loose-envify "^1.3.1"
+
+prr@~0.0.0:
+  version "0.0.0"
+  resolved "https://registry.yarnpkg.com/prr/-/prr-0.0.0.tgz#1a84b85908325501411853d0081ee3fa86e2926a"
+
+punycode@^1.4.1:
+  version "1.4.1"
+  resolved "https://registry.yarnpkg.com/punycode/-/punycode-1.4.1.tgz#c0d5a63b2718800ad8e1eb0fa5269c84dd41845e"
+
+qs@~6.4.0:
+  version "6.4.0"
+  resolved "https://registry.yarnpkg.com/qs/-/qs-6.4.0.tgz#13e26d28ad6b0ffaa91312cd3bf708ed351e7233"
+
+randomatic@^1.1.3:
+  version "1.1.6"
+  resolved "https://registry.yarnpkg.com/randomatic/-/randomatic-1.1.6.tgz#110dcabff397e9dcff7c0789ccc0a49adf1ec5bb"
+  dependencies:
+    is-number "^2.0.2"
+    kind-of "^3.0.2"
+
+rc@^1.1.7:
+  version "1.2.1"
+  resolved "https://registry.yarnpkg.com/rc/-/rc-1.2.1.tgz#2e03e8e42ee450b8cb3dce65be1bf8974e1dfd95"
+  dependencies:
+    deep-extend "~0.4.0"
+    ini "~1.3.0"
+    minimist "^1.2.0"
+    strip-json-comments "~2.0.1"
+
+react-dom@^15.5.4:
+  version "15.5.4"
+  resolved "https://registry.yarnpkg.com/react-dom/-/react-dom-15.5.4.tgz#ba0c28786fd52ed7e4f2135fe0288d462aef93da"
+  dependencies:
+    fbjs "^0.8.9"
+    loose-envify "^1.1.0"
+    object-assign "^4.1.0"
+    prop-types "~15.5.7"
+
+react-test-renderer@^15.5.4:
+  version "15.5.4"
+  resolved "https://registry.yarnpkg.com/react-test-renderer/-/react-test-renderer-15.5.4.tgz#d4ebb23f613d685ea8f5390109c2d20fbf7c83bc"
+  dependencies:
+    fbjs "^0.8.9"
+    object-assign "^4.1.0"
+
+react@^15.5.4:
+  version "15.5.4"
+  resolved "https://registry.yarnpkg.com/react/-/react-15.5.4.tgz#fa83eb01506ab237cdc1c8c3b1cea8de012bf047"
+  dependencies:
+    fbjs "^0.8.9"
+    loose-envify "^1.1.0"
+    object-assign "^4.1.0"
+    prop-types "^15.5.7"
+
+read-pkg-up@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/read-pkg-up/-/read-pkg-up-1.0.1.tgz#9d63c13276c065918d57f002a57f40a1b643fb02"
+  dependencies:
+    find-up "^1.0.0"
+    read-pkg "^1.0.0"
+
+read-pkg-up@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/read-pkg-up/-/read-pkg-up-2.0.0.tgz#6b72a8048984e0c41e79510fd5e9fa99b3b549be"
+  dependencies:
+    find-up "^2.0.0"
+    read-pkg "^2.0.0"
+
+read-pkg@^1.0.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/read-pkg/-/read-pkg-1.1.0.tgz#f5ffaa5ecd29cb31c0474bca7d756b6bb29e3f28"
+  dependencies:
+    load-json-file "^1.0.0"
+    normalize-package-data "^2.3.2"
+    path-type "^1.0.0"
+
+read-pkg@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/read-pkg/-/read-pkg-2.0.0.tgz#8ef1c0623c6a6db0dc6713c4bfac46332b2368f8"
+  dependencies:
+    load-json-file "^2.0.0"
+    normalize-package-data "^2.3.2"
+    path-type "^2.0.0"
+
+readable-stream@^2.0.2, readable-stream@^2.0.6, readable-stream@^2.1.4, readable-stream@^2.1.5, readable-stream@^2.2.2:
+  version "2.2.9"
+  resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-2.2.9.tgz#cf78ec6f4a6d1eb43d26488cac97f042e74b7fc8"
+  dependencies:
+    buffer-shims "~1.0.0"
+    core-util-is "~1.0.0"
+    inherits "~2.0.1"
+    isarray "~1.0.0"
+    process-nextick-args "~1.0.6"
+    string_decoder "~1.0.0"
+    util-deprecate "~1.0.1"
+
+readdirp@^2.0.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/readdirp/-/readdirp-2.1.0.tgz#4ed0ad060df3073300c48440373f72d1cc642d78"
+  dependencies:
+    graceful-fs "^4.1.2"
+    minimatch "^3.0.2"
+    readable-stream "^2.0.2"
+    set-immediate-shim "^1.0.1"
+
+readline2@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/readline2/-/readline2-1.0.1.tgz#41059608ffc154757b715d9989d199ffbf372e35"
+  dependencies:
+    code-point-at "^1.0.0"
+    is-fullwidth-code-point "^1.0.0"
+    mute-stream "0.0.5"
+
+rechoir@^0.6.2:
+  version "0.6.2"
+  resolved "https://registry.yarnpkg.com/rechoir/-/rechoir-0.6.2.tgz#85204b54dba82d5742e28c96756ef43af50e3384"
+  dependencies:
+    resolve "^1.1.6"
+
+regenerate@^1.2.1:
+  version "1.3.2"
+  resolved "https://registry.yarnpkg.com/regenerate/-/regenerate-1.3.2.tgz#d1941c67bad437e1be76433add5b385f95b19260"
+
+regenerator-runtime@^0.10.0:
+  version "0.10.5"
+  resolved "https://registry.yarnpkg.com/regenerator-runtime/-/regenerator-runtime-0.10.5.tgz#336c3efc1220adcedda2c9fab67b5a7955a33658"
+
+regenerator-transform@0.9.11:
+  version "0.9.11"
+  resolved "https://registry.yarnpkg.com/regenerator-transform/-/regenerator-transform-0.9.11.tgz#3a7d067520cb7b7176769eb5ff868691befe1283"
+  dependencies:
+    babel-runtime "^6.18.0"
+    babel-types "^6.19.0"
+    private "^0.1.6"
+
+regex-cache@^0.4.2:
+  version "0.4.3"
+  resolved "https://registry.yarnpkg.com/regex-cache/-/regex-cache-0.4.3.tgz#9b1a6c35d4d0dfcef5711ae651e8e9d3d7114145"
+  dependencies:
+    is-equal-shallow "^0.1.3"
+    is-primitive "^2.0.0"
+
+regexpu-core@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/regexpu-core/-/regexpu-core-2.0.0.tgz#49d038837b8dcf8bfa5b9a42139938e6ea2ae240"
+  dependencies:
+    regenerate "^1.2.1"
+    regjsgen "^0.2.0"
+    regjsparser "^0.1.4"
+
+regjsgen@^0.2.0:
+  version "0.2.0"
+  resolved "https://registry.yarnpkg.com/regjsgen/-/regjsgen-0.2.0.tgz#6c016adeac554f75823fe37ac05b92d5a4edb1f7"
+
+regjsparser@^0.1.4:
+  version "0.1.5"
+  resolved "https://registry.yarnpkg.com/regjsparser/-/regjsparser-0.1.5.tgz#7ee8f84dc6fa792d3fd0ae228d24bd949ead205c"
+  dependencies:
+    jsesc "~0.5.0"
+
+remove-trailing-separator@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/remove-trailing-separator/-/remove-trailing-separator-1.0.1.tgz#615ebb96af559552d4bf4057c8436d486ab63cc4"
+
+repeat-element@^1.1.2:
+  version "1.1.2"
+  resolved "https://registry.yarnpkg.com/repeat-element/-/repeat-element-1.1.2.tgz#ef089a178d1483baae4d93eb98b4f9e4e11d990a"
+
+repeat-string@^1.5.2:
+  version "1.6.1"
+  resolved "https://registry.yarnpkg.com/repeat-string/-/repeat-string-1.6.1.tgz#8dcae470e1c88abc2d600fff4a776286da75e637"
+
+repeating@^2.0.0:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/repeating/-/repeating-2.0.1.tgz#5214c53a926d3552707527fbab415dbc08d06dda"
+  dependencies:
+    is-finite "^1.0.0"
+
+replace-ext@0.0.1:
+  version "0.0.1"
+  resolved "https://registry.yarnpkg.com/replace-ext/-/replace-ext-0.0.1.tgz#29bbd92078a739f0bcce2b4ee41e837953522924"
+
+request@^2.79.0, request@^2.81.0:
+  version "2.81.0"
+  resolved "https://registry.yarnpkg.com/request/-/request-2.81.0.tgz#c6928946a0e06c5f8d6f8a9333469ffda46298a0"
+  dependencies:
+    aws-sign2 "~0.6.0"
+    aws4 "^1.2.1"
+    caseless "~0.12.0"
+    combined-stream "~1.0.5"
+    extend "~3.0.0"
+    forever-agent "~0.6.1"
+    form-data "~2.1.1"
+    har-validator "~4.2.1"
+    hawk "~3.1.3"
+    http-signature "~1.1.0"
+    is-typedarray "~1.0.0"
+    isstream "~0.1.2"
+    json-stringify-safe "~5.0.1"
+    mime-types "~2.1.7"
+    oauth-sign "~0.8.1"
+    performance-now "^0.2.0"
+    qs "~6.4.0"
+    safe-buffer "^5.0.1"
+    stringstream "~0.0.4"
+    tough-cookie "~2.3.0"
+    tunnel-agent "^0.6.0"
+    uuid "^3.0.0"
+
+require-directory@^2.1.1:
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/require-directory/-/require-directory-2.1.1.tgz#8c64ad5fd30dab1c976e2344ffe7f792a6a6df42"
+
+require-main-filename@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/require-main-filename/-/require-main-filename-1.0.1.tgz#97f717b69d48784f5f526a6c5aa8ffdda055a4d1"
+
+require-relative@0.8.7:
+  version "0.8.7"
+  resolved "https://registry.yarnpkg.com/require-relative/-/require-relative-0.8.7.tgz#7999539fc9e047a37928fa196f8e1563dabd36de"
+
+require-uncached@^1.0.2:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/require-uncached/-/require-uncached-1.0.3.tgz#4e0d56d6c9662fd31e43011c4b95aa49955421d3"
+  dependencies:
+    caller-path "^0.1.0"
+    resolve-from "^1.0.0"
+
+resolve-dir@^0.1.0:
+  version "0.1.1"
+  resolved "https://registry.yarnpkg.com/resolve-dir/-/resolve-dir-0.1.1.tgz#b219259a5602fac5c5c496ad894a6e8cc430261e"
+  dependencies:
+    expand-tilde "^1.2.2"
+    global-modules "^0.2.3"
+
+resolve-from@^1.0.0:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/resolve-from/-/resolve-from-1.0.1.tgz#26cbfe935d1aeeeabb29bc3fe5aeb01e93d44226"
+
+resolve@1.1.7:
+  version "1.1.7"
+  resolved "https://registry.yarnpkg.com/resolve/-/resolve-1.1.7.tgz#203114d82ad2c5ed9e8e0411b3932875e889e97b"
+
+resolve@^1.1.6, resolve@^1.1.7, resolve@^1.3.2:
+  version "1.3.3"
+  resolved "https://registry.yarnpkg.com/resolve/-/resolve-1.3.3.tgz#655907c3469a8680dc2de3a275a8fdd69691f0e5"
+  dependencies:
+    path-parse "^1.0.5"
+
+restore-cursor@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/restore-cursor/-/restore-cursor-1.0.1.tgz#34661f46886327fed2991479152252df92daa541"
+  dependencies:
+    exit-hook "^1.0.0"
+    onetime "^1.0.0"
+
+restore-cursor@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/restore-cursor/-/restore-cursor-2.0.0.tgz#9f7ee287f82fd326d4fd162923d62129eee0dfaf"
+  dependencies:
+    onetime "^2.0.0"
+    signal-exit "^3.0.2"
+
+right-align@^0.1.1:
+  version "0.1.3"
+  resolved "https://registry.yarnpkg.com/right-align/-/right-align-0.1.3.tgz#61339b722fe6a3515689210d24e14c96148613ef"
+  dependencies:
+    align-text "^0.1.1"
+
+rimraf@2, rimraf@^2.2.8, rimraf@^2.5.1, rimraf@^2.6.1:
+  version "2.6.1"
+  resolved "https://registry.yarnpkg.com/rimraf/-/rimraf-2.6.1.tgz#c2338ec643df7a1b7fe5c54fa86f57428a55f33d"
+  dependencies:
+    glob "^7.0.5"
+
+rollup-plugin-babel@^2.7.1:
+  version "2.7.1"
+  resolved "https://registry.yarnpkg.com/rollup-plugin-babel/-/rollup-plugin-babel-2.7.1.tgz#16528197b0f938a1536f44683c7a93d573182f57"
+  dependencies:
+    babel-core "6"
+    babel-plugin-transform-es2015-classes "^6.9.0"
+    object-assign "^4.1.0"
+    rollup-pluginutils "^1.5.0"
+
+rollup-plugin-commonjs@^8.0.2:
+  version "8.0.2"
+  resolved "https://registry.yarnpkg.com/rollup-plugin-commonjs/-/rollup-plugin-commonjs-8.0.2.tgz#98b1589bfe32a6c0f67790b60c0b499972afed89"
+  dependencies:
+    acorn "^4.0.1"
+    estree-walker "^0.3.0"
+    magic-string "^0.19.0"
+    resolve "^1.1.7"
+    rollup-pluginutils "^2.0.1"
+
+rollup-plugin-json@^2.1.1:
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/rollup-plugin-json/-/rollup-plugin-json-2.1.1.tgz#933390dff3c9e3e654157d61304c5e167fc58623"
+  dependencies:
+    rollup-pluginutils "^1.5.2"
+
+rollup-plugin-node-resolve@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/rollup-plugin-node-resolve/-/rollup-plugin-node-resolve-3.0.0.tgz#8b897c4c3030d5001277b0514b25d2ca09683ee0"
+  dependencies:
+    browser-resolve "^1.11.0"
+    builtin-modules "^1.1.0"
+    is-module "^1.0.0"
+    resolve "^1.1.6"
+
+rollup-plugin-replace@^1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/rollup-plugin-replace/-/rollup-plugin-replace-1.1.1.tgz#396315ded050a6ce43b9518a886a3f60efb1ea33"
+  dependencies:
+    magic-string "^0.15.2"
+    minimatch "^3.0.2"
+    rollup-pluginutils "^1.5.0"
+
+rollup-plugin-uglify@^2.0.1:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/rollup-plugin-uglify/-/rollup-plugin-uglify-2.0.1.tgz#67b37ad1efdafbd83af4c36b40c189ee4866c969"
+  dependencies:
+    uglify-js "^3.0.9"
+
+rollup-pluginutils@^1.5.0, rollup-pluginutils@^1.5.2:
+  version "1.5.2"
+  resolved "https://registry.yarnpkg.com/rollup-pluginutils/-/rollup-pluginutils-1.5.2.tgz#1e156e778f94b7255bfa1b3d0178be8f5c552408"
+  dependencies:
+    estree-walker "^0.2.1"
+    minimatch "^3.0.2"
+
+rollup-pluginutils@^2.0.1:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/rollup-pluginutils/-/rollup-pluginutils-2.0.1.tgz#7ec95b3573f6543a46a6461bd9a7c544525d0fc0"
+  dependencies:
+    estree-walker "^0.3.0"
+    micromatch "^2.3.11"
+
+rollup-watch@^3.2.2:
+  version "3.2.2"
+  resolved "https://registry.yarnpkg.com/rollup-watch/-/rollup-watch-3.2.2.tgz#5e574232e9ef36da9177f46946d8080cb267354b"
+  dependencies:
+    require-relative "0.8.7"
+
+rollup@^0.41.6:
+  version "0.41.6"
+  resolved "https://registry.yarnpkg.com/rollup/-/rollup-0.41.6.tgz#e0d05497877a398c104d816d2733a718a7a94e2a"
+  dependencies:
+    source-map-support "^0.4.0"
+
+run-async@^0.1.0:
+  version "0.1.0"
+  resolved "https://registry.yarnpkg.com/run-async/-/run-async-0.1.0.tgz#c8ad4a5e110661e402a7d21b530e009f25f8e389"
+  dependencies:
+    once "^1.3.0"
+
+run-async@^2.2.0:
+  version "2.3.0"
+  resolved "https://registry.yarnpkg.com/run-async/-/run-async-2.3.0.tgz#0371ab4ae0bdd720d4166d7dfda64ff7a445a6c0"
+  dependencies:
+    is-promise "^2.1.0"
+
+rx-lite@^3.1.2:
+  version "3.1.2"
+  resolved "https://registry.yarnpkg.com/rx-lite/-/rx-lite-3.1.2.tgz#19ce502ca572665f3b647b10939f97fd1615f102"
+
+rx@^4.1.0:
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/rx/-/rx-4.1.0.tgz#a5f13ff79ef3b740fe30aa803fb09f98805d4782"
+
+safe-buffer@^5.0.1:
+  version "5.0.1"
+  resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.0.1.tgz#d263ca54696cd8a306b5ca6551e92de57918fbe7"
+
+sane@~1.6.0:
+  version "1.6.0"
+  resolved "https://registry.yarnpkg.com/sane/-/sane-1.6.0.tgz#9610c452307a135d29c1fdfe2547034180c46775"
+  dependencies:
+    anymatch "^1.3.0"
+    exec-sh "^0.2.0"
+    fb-watchman "^1.8.0"
+    minimatch "^3.0.2"
+    minimist "^1.1.1"
+    walker "~1.0.5"
+    watch "~0.10.0"
+
+sax@^1.2.1:
+  version "1.2.2"
+  resolved "https://registry.yarnpkg.com/sax/-/sax-1.2.2.tgz#fd8631a23bc7826bef5d871bdb87378c95647828"
+
+"semver@2 || 3 || 4 || 5", semver@^5.3.0:
+  version "5.3.0"
+  resolved "https://registry.yarnpkg.com/semver/-/semver-5.3.0.tgz#9b2ce5d3de02d17c6012ad326aa6b4d0cf54f94f"
+
+set-blocking@^2.0.0, set-blocking@~2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/set-blocking/-/set-blocking-2.0.0.tgz#045f9782d011ae9a6803ddd382b24392b3d890f7"
+
+set-getter@^0.1.0:
+  version "0.1.0"
+  resolved "https://registry.yarnpkg.com/set-getter/-/set-getter-0.1.0.tgz#d769c182c9d5a51f409145f2fba82e5e86e80376"
+  dependencies:
+    to-object-path "^0.3.0"
+
+set-immediate-shim@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/set-immediate-shim/-/set-immediate-shim-1.0.1.tgz#4b2b1b27eb808a9f8dcc481a58e5e56f599f3f61"
+
+setimmediate@^1.0.5:
+  version "1.0.5"
+  resolved "https://registry.yarnpkg.com/setimmediate/-/setimmediate-1.0.5.tgz#290cbb232e306942d7d7ea9b83732ab7856f8285"
+
+shelljs@^0.7.5:
+  version "0.7.7"
+  resolved "https://registry.yarnpkg.com/shelljs/-/shelljs-0.7.7.tgz#b2f5c77ef97148f4b4f6e22682e10bba8667cff1"
+  dependencies:
+    glob "^7.0.0"
+    interpret "^1.0.0"
+    rechoir "^0.6.2"
+
+shellwords@^0.1.0:
+  version "0.1.0"
+  resolved "https://registry.yarnpkg.com/shellwords/-/shellwords-0.1.0.tgz#66afd47b6a12932d9071cbfd98a52e785cd0ba14"
+
+should-equal@^1.0.0:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/should-equal/-/should-equal-1.0.1.tgz#0b6e9516f2601a9fb0bb2dcc369afa1c7e200af7"
+  dependencies:
+    should-type "^1.0.0"
+
+should-format@^3.0.2:
+  version "3.0.3"
+  resolved "https://registry.yarnpkg.com/should-format/-/should-format-3.0.3.tgz#9bfc8f74fa39205c53d38c34d717303e277124f1"
+  dependencies:
+    should-type "^1.3.0"
+    should-type-adaptors "^1.0.1"
+
+should-type-adaptors@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/should-type-adaptors/-/should-type-adaptors-1.0.1.tgz#efe5553cdf68cff66e5c5f51b712dc351c77beaa"
+  dependencies:
+    should-type "^1.3.0"
+    should-util "^1.0.0"
+
+should-type@^1.0.0, should-type@^1.3.0, should-type@^1.4.0:
+  version "1.4.0"
+  resolved "https://registry.yarnpkg.com/should-type/-/should-type-1.4.0.tgz#0756d8ce846dfd09843a6947719dfa0d4cff5cf3"
+
+should-util@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/should-util/-/should-util-1.0.0.tgz#c98cda374aa6b190df8ba87c9889c2b4db620063"
+
+should@^11.2.1:
+  version "11.2.1"
+  resolved "https://registry.yarnpkg.com/should/-/should-11.2.1.tgz#90f55145552d01cfc200666e4e818a1c9670eda2"
+  dependencies:
+    should-equal "^1.0.0"
+    should-format "^3.0.2"
+    should-type "^1.4.0"
+    should-type-adaptors "^1.0.1"
+    should-util "^1.0.0"
+
+signal-exit@^3.0.0, signal-exit@^3.0.2:
+  version "3.0.2"
+  resolved "https://registry.yarnpkg.com/signal-exit/-/signal-exit-3.0.2.tgz#b5fdc08f1287ea1178628e415e25132b73646c6d"
+
+slash@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/slash/-/slash-1.0.0.tgz#c41f2f6c39fc16d1cd17ad4b5d896114ae470d55"
+
+slice-ansi@0.0.3:
+  version "0.0.3"
+  resolved "https://registry.yarnpkg.com/slice-ansi/-/slice-ansi-0.0.3.tgz#9ee38472a17a9f0f72e7ebc9ec0c328c39dc4a8b"
+
+slice-ansi@0.0.4:
+  version "0.0.4"
+  resolved "https://registry.yarnpkg.com/slice-ansi/-/slice-ansi-0.0.4.tgz#edbf8903f66f7ce2f8eafd6ceed65e264c831b35"
+
+slide@^1.1.5:
+  version "1.1.6"
+  resolved "https://registry.yarnpkg.com/slide/-/slide-1.1.6.tgz#56eb027d65b4d2dce6cb2e2d32c4d4afc9e1d707"
+
+sntp@1.x.x:
+  version "1.0.9"
+  resolved "https://registry.yarnpkg.com/sntp/-/sntp-1.0.9.tgz#6541184cc90aeea6c6e7b35e2659082443c66198"
+  dependencies:
+    hoek "2.x.x"
+
+source-map-support@^0.4.0, source-map-support@^0.4.2:
+  version "0.4.15"
+  resolved "https://registry.yarnpkg.com/source-map-support/-/source-map-support-0.4.15.tgz#03202df65c06d2bd8c7ec2362a193056fef8d3b1"
+  dependencies:
+    source-map "^0.5.6"
+
+source-map@^0.4.4:
+  version "0.4.4"
+  resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.4.4.tgz#eba4f5da9c0dc999de68032d8b4f76173652036b"
+  dependencies:
+    amdefine ">=0.0.4"
+
+source-map@^0.5.0, source-map@^0.5.3, source-map@^0.5.6, source-map@~0.5.1:
+  version "0.5.6"
+  resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.5.6.tgz#75ce38f52bf0733c5a7f0c118d81334a2bb5f412"
+
+source-map@~0.2.0:
+  version "0.2.0"
+  resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.2.0.tgz#dab73fbcfc2ba819b4de03bd6f6eaa48164b3f9d"
+  dependencies:
+    amdefine ">=0.0.4"
+
+spdx-correct@~1.0.0:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/spdx-correct/-/spdx-correct-1.0.2.tgz#4b3073d933ff51f3912f03ac5519498a4150db40"
+  dependencies:
+    spdx-license-ids "^1.0.2"
+
+spdx-expression-parse@~1.0.0:
+  version "1.0.4"
+  resolved "https://registry.yarnpkg.com/spdx-expression-parse/-/spdx-expression-parse-1.0.4.tgz#9bdf2f20e1f40ed447fbe273266191fced51626c"
+
+spdx-license-ids@^1.0.2:
+  version "1.2.2"
+  resolved "https://registry.yarnpkg.com/spdx-license-ids/-/spdx-license-ids-1.2.2.tgz#c9df7a3424594ade6bd11900d596696dc06bac57"
+
+sprintf-js@~1.0.2:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/sprintf-js/-/sprintf-js-1.0.3.tgz#04e6926f662895354f3dd015203633b857297e2c"
+
+sshpk@^1.7.0:
+  version "1.13.0"
+  resolved "https://registry.yarnpkg.com/sshpk/-/sshpk-1.13.0.tgz#ff2a3e4fd04497555fed97b39a0fd82fafb3a33c"
+  dependencies:
+    asn1 "~0.2.3"
+    assert-plus "^1.0.0"
+    dashdash "^1.12.0"
+    getpass "^0.1.1"
+  optionalDependencies:
+    bcrypt-pbkdf "^1.0.0"
+    ecc-jsbn "~0.1.1"
+    jodid25519 "^1.0.0"
+    jsbn "~0.1.0"
+    tweetnacl "~0.14.0"
+
+string-length@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/string-length/-/string-length-1.0.1.tgz#56970fb1c38558e9e70b728bf3de269ac45adfac"
+  dependencies:
+    strip-ansi "^3.0.0"
+
+string-width@^1.0.1, string-width@^1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/string-width/-/string-width-1.0.2.tgz#118bdf5b8cdc51a2a7e70d211e07e2b0b9b107d3"
+  dependencies:
+    code-point-at "^1.0.0"
+    is-fullwidth-code-point "^1.0.0"
+    strip-ansi "^3.0.0"
+
+string-width@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/string-width/-/string-width-2.0.0.tgz#635c5436cc72a6e0c387ceca278d4e2eec52687e"
+  dependencies:
+    is-fullwidth-code-point "^2.0.0"
+    strip-ansi "^3.0.0"
+
+string_decoder@~1.0.0:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/string_decoder/-/string_decoder-1.0.1.tgz#62e200f039955a6810d8df0a33ffc0f013662d98"
+  dependencies:
+    safe-buffer "^5.0.1"
+
+stringstream@~0.0.4:
+  version "0.0.5"
+  resolved "https://registry.yarnpkg.com/stringstream/-/stringstream-0.0.5.tgz#4e484cd4de5a0bbbee18e46307710a8a81621878"
+
+strip-ansi@^3.0.0, strip-ansi@^3.0.1:
+  version "3.0.1"
+  resolved "https://registry.yarnpkg.com/strip-ansi/-/strip-ansi-3.0.1.tgz#6a385fb8853d952d5ff05d0e8aaf94278dc63dcf"
+  dependencies:
+    ansi-regex "^2.0.0"
+
+strip-bom-buffer@^0.1.1:
+  version "0.1.1"
+  resolved "https://registry.yarnpkg.com/strip-bom-buffer/-/strip-bom-buffer-0.1.1.tgz#ca3ddc4919c13f9fddf30b1dff100a9835248b4d"
+  dependencies:
+    is-buffer "^1.1.0"
+    is-utf8 "^0.2.0"
+
+strip-bom-string@^0.1.2:
+  version "0.1.2"
+  resolved "https://registry.yarnpkg.com/strip-bom-string/-/strip-bom-string-0.1.2.tgz#9c6e720a313ba9836589518405ccfb88a5f41b9c"
+
+strip-bom@3.0.0, strip-bom@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/strip-bom/-/strip-bom-3.0.0.tgz#2334c18e9c759f7bdd56fdef7e9ae3d588e68ed3"
+
+strip-bom@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/strip-bom/-/strip-bom-2.0.0.tgz#6219a85616520491f35788bdbf1447a99c7e6b0e"
+  dependencies:
+    is-utf8 "^0.2.0"
+
+strip-json-comments@~2.0.1:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/strip-json-comments/-/strip-json-comments-2.0.1.tgz#3c531942e908c2697c0ec344858c286c7ca0a60a"
+
+success-symbol@^0.1.0:
+  version "0.1.0"
+  resolved "https://registry.yarnpkg.com/success-symbol/-/success-symbol-0.1.0.tgz#24022e486f3bf1cdca094283b769c472d3b72897"
+
+supports-color@3.1.2, supports-color@^3.1.2:
+  version "3.1.2"
+  resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-3.1.2.tgz#72a262894d9d408b956ca05ff37b2ed8a6e2a2d5"
+  dependencies:
+    has-flag "^1.0.0"
+
+supports-color@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-2.0.0.tgz#535d045ce6b6363fa40117084629995e9df324c7"
+
+symbol-tree@^3.2.1:
+  version "3.2.2"
+  resolved "https://registry.yarnpkg.com/symbol-tree/-/symbol-tree-3.2.2.tgz#ae27db38f660a7ae2e1c3b7d1bc290819b8519e6"
+
+table@^3.7.8:
+  version "3.8.3"
+  resolved "https://registry.yarnpkg.com/table/-/table-3.8.3.tgz#2bbc542f0fda9861a755d3947fefd8b3f513855f"
+  dependencies:
+    ajv "^4.7.0"
+    ajv-keywords "^1.0.0"
+    chalk "^1.1.1"
+    lodash "^4.0.0"
+    slice-ansi "0.0.4"
+    string-width "^2.0.0"
+
+tar-pack@^3.4.0:
+  version "3.4.0"
+  resolved "https://registry.yarnpkg.com/tar-pack/-/tar-pack-3.4.0.tgz#23be2d7f671a8339376cbdb0b8fe3fdebf317984"
+  dependencies:
+    debug "^2.2.0"
+    fstream "^1.0.10"
+    fstream-ignore "^1.0.5"
+    once "^1.3.3"
+    readable-stream "^2.1.4"
+    rimraf "^2.5.1"
+    tar "^2.2.1"
+    uid-number "^0.0.6"
+
+tar@^2.2.1:
+  version "2.2.1"
+  resolved "https://registry.yarnpkg.com/tar/-/tar-2.2.1.tgz#8e4d2a256c0e2185c6b18ad694aec968b83cb1d1"
+  dependencies:
+    block-stream "*"
+    fstream "^1.0.2"
+    inherits "2"
+
+test-exclude@^4.1.0:
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/test-exclude/-/test-exclude-4.1.0.tgz#04ca70b7390dd38c98d4a003a173806ca7991c91"
+  dependencies:
+    arrify "^1.0.1"
+    micromatch "^2.3.11"
+    object-assign "^4.1.0"
+    read-pkg-up "^1.0.1"
+    require-main-filename "^1.0.1"
+
+text-table@~0.2.0:
+  version "0.2.0"
+  resolved "https://registry.yarnpkg.com/text-table/-/text-table-0.2.0.tgz#7f5ee823ae805207c00af2df4a84ec3fcfa570b4"
+
+throat@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/throat/-/throat-3.0.0.tgz#e7c64c867cbb3845f10877642f7b60055b8ec0d6"
+
+through2@^2.0.0, through2@^2.0.1:
+  version "2.0.3"
+  resolved "https://registry.yarnpkg.com/through2/-/through2-2.0.3.tgz#0004569b37c7c74ba39c43f3ced78d1ad94140be"
+  dependencies:
+    readable-stream "^2.1.5"
+    xtend "~4.0.1"
+
+through@^2.3.6:
+  version "2.3.8"
+  resolved "https://registry.yarnpkg.com/through/-/through-2.3.8.tgz#0dd4c9ffaabc357960b1b724115d7e0e86a2e1f5"
+
+tmp@^0.0.31:
+  version "0.0.31"
+  resolved "https://registry.yarnpkg.com/tmp/-/tmp-0.0.31.tgz#8f38ab9438e17315e5dbd8b3657e8bfb277ae4a7"
+  dependencies:
+    os-tmpdir "~1.0.1"
+
+tmpl@1.0.x:
+  version "1.0.4"
+  resolved "https://registry.yarnpkg.com/tmpl/-/tmpl-1.0.4.tgz#23640dd7b42d00433911140820e5cf440e521dd1"
+
+to-fast-properties@^1.0.1:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/to-fast-properties/-/to-fast-properties-1.0.3.tgz#b83571fa4d8c25b82e231b06e3a3055de4ca1a47"
+
+to-file@^0.2.0:
+  version "0.2.0"
+  resolved "https://registry.yarnpkg.com/to-file/-/to-file-0.2.0.tgz#236c6c088065e570defbd15cf4b4e565be46ea93"
+  dependencies:
+    define-property "^0.2.5"
+    extend-shallow "^2.0.1"
+    file-contents "^0.2.4"
+    glob-parent "^2.0.0"
+    is-valid-glob "^0.3.0"
+    isobject "^2.1.0"
+    lazy-cache "^2.0.1"
+    vinyl "^1.1.1"
+
+to-object-path@^0.3.0:
+  version "0.3.0"
+  resolved "https://registry.yarnpkg.com/to-object-path/-/to-object-path-0.3.0.tgz#297588b7b0e7e0ac08e04e672f85c1f4999e17af"
+  dependencies:
+    kind-of "^3.0.2"
+
+tough-cookie@^2.3.2, tough-cookie@~2.3.0:
+  version "2.3.2"
+  resolved "https://registry.yarnpkg.com/tough-cookie/-/tough-cookie-2.3.2.tgz#f081f76e4c85720e6c37a5faced737150d84072a"
+  dependencies:
+    punycode "^1.4.1"
+
+tr46@~0.0.3:
+  version "0.0.3"
+  resolved "https://registry.yarnpkg.com/tr46/-/tr46-0.0.3.tgz#8184fd347dac9cdc185992f3a6622e14b9d9ab6a"
+
+trim-right@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/trim-right/-/trim-right-1.0.1.tgz#cb2e1203067e0c8de1f614094b9fe45704ea6003"
+
+tryit@^1.0.1:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/tryit/-/tryit-1.0.3.tgz#393be730a9446fd1ead6da59a014308f36c289cb"
+
+tunnel-agent@^0.6.0:
+  version "0.6.0"
+  resolved "https://registry.yarnpkg.com/tunnel-agent/-/tunnel-agent-0.6.0.tgz#27a5dea06b36b04a0a9966774b290868f0fc40fd"
+  dependencies:
+    safe-buffer "^5.0.1"
+
+tweetnacl@^0.14.3, tweetnacl@~0.14.0:
+  version "0.14.5"
+  resolved "https://registry.yarnpkg.com/tweetnacl/-/tweetnacl-0.14.5.tgz#5ae68177f192d4456269d108afa93ff8743f4f64"
+
+type-check@~0.3.2:
+  version "0.3.2"
+  resolved "https://registry.yarnpkg.com/type-check/-/type-check-0.3.2.tgz#5884cab512cf1d355e3fb784f30804b2b520db72"
+  dependencies:
+    prelude-ls "~1.1.2"
+
+typedarray@^0.0.6:
+  version "0.0.6"
+  resolved "https://registry.yarnpkg.com/typedarray/-/typedarray-0.0.6.tgz#867ac74e3864187b1d3d47d996a78ec5c8830777"
+
+ua-parser-js@^0.7.9:
+  version "0.7.12"
+  resolved "https://registry.yarnpkg.com/ua-parser-js/-/ua-parser-js-0.7.12.tgz#04c81a99bdd5dc52263ea29d24c6bf8d4818a4bb"
+
+uglify-js@^2.6:
+  version "2.8.27"
+  resolved "https://registry.yarnpkg.com/uglify-js/-/uglify-js-2.8.27.tgz#47787f912b0f242e5b984343be8e35e95f694c9c"
+  dependencies:
+    source-map "~0.5.1"
+    yargs "~3.10.0"
+  optionalDependencies:
+    uglify-to-browserify "~1.0.0"
+
+uglify-js@^3.0.9:
+  version "3.0.11"
+  resolved "https://registry.yarnpkg.com/uglify-js/-/uglify-js-3.0.11.tgz#81f594b9a24dad76e39da92f8f06e5b3bc8c2e11"
+  dependencies:
+    commander "~2.9.0"
+    source-map "~0.5.1"
+
+uglify-to-browserify@~1.0.0:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/uglify-to-browserify/-/uglify-to-browserify-1.0.2.tgz#6e0924d6bda6b5afe349e39a6d632850a0f882b7"
+
+uid-number@^0.0.6:
+  version "0.0.6"
+  resolved "https://registry.yarnpkg.com/uid-number/-/uid-number-0.0.6.tgz#0ea10e8035e8eb5b8e4449f06da1c730663baa81"
+
+unc-path-regex@^0.1.0:
+  version "0.1.2"
+  resolved "https://registry.yarnpkg.com/unc-path-regex/-/unc-path-regex-0.1.2.tgz#e73dd3d7b0d7c5ed86fbac6b0ae7d8c6a69d50fa"
+
+user-home@^1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/user-home/-/user-home-1.1.1.tgz#2b5be23a32b63a7c9deb8d0f28d485724a3df190"
+
+user-home@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/user-home/-/user-home-2.0.0.tgz#9c70bfd8169bc1dcbf48604e0f04b8b49cde9e9f"
+  dependencies:
+    os-homedir "^1.0.0"
+
+util-deprecate@~1.0.1:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/util-deprecate/-/util-deprecate-1.0.2.tgz#450d4dc9fa70de732762fbd2d4a28981419a0ccf"
+
+uuid@^2.0.3:
+  version "2.0.3"
+  resolved "https://registry.yarnpkg.com/uuid/-/uuid-2.0.3.tgz#67e2e863797215530dff318e5bf9dcebfd47b21a"
+
+uuid@^3.0.0:
+  version "3.0.1"
+  resolved "https://registry.yarnpkg.com/uuid/-/uuid-3.0.1.tgz#6544bba2dfda8c1cf17e629a3a305e2bb1fee6c1"
+
+v8flags@^2.0.10:
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/v8flags/-/v8flags-2.1.1.tgz#aab1a1fa30d45f88dd321148875ac02c0b55e5b4"
+  dependencies:
+    user-home "^1.1.1"
+
+validate-npm-package-license@^3.0.1:
+  version "3.0.1"
+  resolved "https://registry.yarnpkg.com/validate-npm-package-license/-/validate-npm-package-license-3.0.1.tgz#2804babe712ad3379459acfbe24746ab2c303fbc"
+  dependencies:
+    spdx-correct "~1.0.0"
+    spdx-expression-parse "~1.0.0"
+
+verror@1.3.6:
+  version "1.3.6"
+  resolved "https://registry.yarnpkg.com/verror/-/verror-1.3.6.tgz#cff5df12946d297d2baaefaa2689e25be01c005c"
+  dependencies:
+    extsprintf "1.0.2"
+
+vinyl@^1.1.1:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/vinyl/-/vinyl-1.2.0.tgz#5c88036cf565e5df05558bfc911f8656df218884"
+  dependencies:
+    clone "^1.0.0"
+    clone-stats "^0.0.1"
+    replace-ext "0.0.1"
+
+vlq@^0.2.1:
+  version "0.2.2"
+  resolved "https://registry.yarnpkg.com/vlq/-/vlq-0.2.2.tgz#e316d5257b40b86bb43cb8d5fea5d7f54d6b0ca1"
+
+vorpal-less@^0.0.13:
+  version "0.0.13"
+  resolved "https://registry.yarnpkg.com/vorpal-less/-/vorpal-less-0.0.13.tgz#a5adbc4fbc8ad6a150fe6d91a8996e93fd8b6418"
+  dependencies:
+    slice-ansi "0.0.3"
+
+vorpal-repl@^1.1.8:
+  version "1.1.8"
+  resolved "https://registry.yarnpkg.com/vorpal-repl/-/vorpal-repl-1.1.8.tgz#ed1086eb073509486a1a54a76754c888bf221e81"
+  dependencies:
+    chalk "^1.1.0"
+    json-stringify-safe "^5.0.1"
+    lodash "^3.10.0"
+
+walker@~1.0.5:
+  version "1.0.7"
+  resolved "https://registry.yarnpkg.com/walker/-/walker-1.0.7.tgz#2f7f9b8fd10d677262b18a884e28d19618e028fb"
+  dependencies:
+    makeerror "1.0.x"
+
+watch@~0.10.0:
+  version "0.10.0"
+  resolved "https://registry.yarnpkg.com/watch/-/watch-0.10.0.tgz#77798b2da0f9910d595f1ace5b0c2258521f21dc"
+
+webidl-conversions@^3.0.0:
+  version "3.0.1"
+  resolved "https://registry.yarnpkg.com/webidl-conversions/-/webidl-conversions-3.0.1.tgz#24534275e2a7bc6be7bc86611cc16ae0a5654871"
+
+webidl-conversions@^4.0.0:
+  version "4.0.1"
+  resolved "https://registry.yarnpkg.com/webidl-conversions/-/webidl-conversions-4.0.1.tgz#8015a17ab83e7e1b311638486ace81da6ce206a0"
+
+whatwg-encoding@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/whatwg-encoding/-/whatwg-encoding-1.0.1.tgz#3c6c451a198ee7aec55b1ec61d0920c67801a5f4"
+  dependencies:
+    iconv-lite "0.4.13"
+
+whatwg-fetch@>=0.10.0:
+  version "2.0.3"
+  resolved "https://registry.yarnpkg.com/whatwg-fetch/-/whatwg-fetch-2.0.3.tgz#9c84ec2dcf68187ff00bc64e1274b442176e1c84"
+
+whatwg-url@^4.3.0:
+  version "4.8.0"
+  resolved "https://registry.yarnpkg.com/whatwg-url/-/whatwg-url-4.8.0.tgz#d2981aa9148c1e00a41c5a6131166ab4683bbcc0"
+  dependencies:
+    tr46 "~0.0.3"
+    webidl-conversions "^3.0.0"
+
+which-module@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/which-module/-/which-module-1.0.0.tgz#bba63ca861948994ff307736089e3b96026c2a4f"
+
+which@^1.2.12:
+  version "1.2.14"
+  resolved "https://registry.yarnpkg.com/which/-/which-1.2.14.tgz#9a87c4378f03e827cecaf1acdf56c736c01c14e5"
+  dependencies:
+    isexe "^2.0.0"
+
+wide-align@^1.1.0:
+  version "1.1.2"
+  resolved "https://registry.yarnpkg.com/wide-align/-/wide-align-1.1.2.tgz#571e0f1b0604636ebc0dfc21b0339bbe31341710"
+  dependencies:
+    string-width "^1.0.2"
+
+window-size@0.1.0:
+  version "0.1.0"
+  resolved "https://registry.yarnpkg.com/window-size/-/window-size-0.1.0.tgz#5438cd2ea93b202efa3a19fe8887aee7c94f9c9d"
+
+wordwrap@0.0.2, wordwrap@~0.0.2:
+  version "0.0.2"
+  resolved "https://registry.yarnpkg.com/wordwrap/-/wordwrap-0.0.2.tgz#b79669bb42ecb409f83d583cad52ca17eaa1643f"
+
+wordwrap@~1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/wordwrap/-/wordwrap-1.0.0.tgz#27584810891456a4171c8d0226441ade90cbcaeb"
+
+worker-farm@^1.3.1:
+  version "1.3.1"
+  resolved "https://registry.yarnpkg.com/worker-farm/-/worker-farm-1.3.1.tgz#4333112bb49b17aa050b87895ca6b2cacf40e5ff"
+  dependencies:
+    errno ">=0.1.1 <0.2.0-0"
+    xtend ">=4.0.0 <4.1.0-0"
+
+wrap-ansi@^2.0.0, wrap-ansi@^2.1.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/wrap-ansi/-/wrap-ansi-2.1.0.tgz#d8fc3d284dd05794fe84973caecdd1cf824fdd85"
+  dependencies:
+    string-width "^1.0.1"
+    strip-ansi "^3.0.1"
+
+wrappy@1:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/wrappy/-/wrappy-1.0.2.tgz#b5243d8f3ec1aa35f1364605bc0d1036e30ab69f"
+
+write-file-atomic@^1.1.4:
+  version "1.3.4"
+  resolved "https://registry.yarnpkg.com/write-file-atomic/-/write-file-atomic-1.3.4.tgz#f807a4f0b1d9e913ae7a48112e6cc3af1991b45f"
+  dependencies:
+    graceful-fs "^4.1.11"
+    imurmurhash "^0.1.4"
+    slide "^1.1.5"
+
+write@^0.2.1:
+  version "0.2.1"
+  resolved "https://registry.yarnpkg.com/write/-/write-0.2.1.tgz#5fc03828e264cea3fe91455476f7a3c566cb0757"
+  dependencies:
+    mkdirp "^0.5.1"
+
+xml-name-validator@^2.0.1:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/xml-name-validator/-/xml-name-validator-2.0.1.tgz#4d8b8f1eccd3419aa362061becef515e1e559635"
+
+"xtend@>=4.0.0 <4.1.0-0", xtend@^4.0.0, xtend@~4.0.1:
+  version "4.0.1"
+  resolved "https://registry.yarnpkg.com/xtend/-/xtend-4.0.1.tgz#a5c6d532be656e23db820efb943a1f04998d63af"
+
+y18n@^3.2.1:
+  version "3.2.1"
+  resolved "https://registry.yarnpkg.com/y18n/-/y18n-3.2.1.tgz#6d15fba884c08679c0d77e88e7759e811e07fa41"
+
+yargs-parser@^5.0.0:
+  version "5.0.0"
+  resolved "https://registry.yarnpkg.com/yargs-parser/-/yargs-parser-5.0.0.tgz#275ecf0d7ffe05c77e64e7c86e4cd94bf0e1228a"
+  dependencies:
+    camelcase "^3.0.0"
+
+yargs@^7.0.2:
+  version "7.1.0"
+  resolved "https://registry.yarnpkg.com/yargs/-/yargs-7.1.0.tgz#6ba318eb16961727f5d284f8ea003e8d6154d0c8"
+  dependencies:
+    camelcase "^3.0.0"
+    cliui "^3.2.0"
+    decamelize "^1.1.1"
+    get-caller-file "^1.0.1"
+    os-locale "^1.4.0"
+    read-pkg-up "^1.0.1"
+    require-directory "^2.1.1"
+    require-main-filename "^1.0.1"
+    set-blocking "^2.0.0"
+    string-width "^1.0.2"
+    which-module "^1.0.0"
+    y18n "^3.2.1"
+    yargs-parser "^5.0.0"
+
+yargs@~3.10.0:
+  version "3.10.0"
+  resolved "https://registry.yarnpkg.com/yargs/-/yargs-3.10.0.tgz#f7ee7bd857dd7c1d2d38c0e74efbd681d1431fd1"
+  dependencies:
+    camelcase "^1.0.2"
+    cliui "^2.1.0"
+    decamelize "^1.0.0"
+    window-size "0.1.0"