diff --git a/package-lock.json b/package-lock.json
index d29c8d8..9719f5d 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1372,7 +1372,6 @@
       "version": "1.5.0",
       "resolved": "https://registry.npmjs.org/bindings/-/bindings-1.5.0.tgz",
       "integrity": "sha512-p2q/t/mhvuOj/UeLlV6566GD/guowlr0hHxClI0W9m7MWYkL1F0hLo+0Aexs9HSPCtR1SXQ0TD3MMKrXZajbiQ==",
-      "optional": true,
       "requires": {
         "file-uri-to-path": "1.0.0"
       }
@@ -1556,6 +1555,17 @@
         "path-is-absolute": "^1.0.0",
         "readdirp": "^2.2.1",
         "upath": "^1.1.1"
+      },
+      "dependencies": {
+        "fsevents": {
+          "version": "1.2.13",
+          "resolved": "https://registry.npmjs.org/fsevents/-/fsevents-1.2.13.tgz",
+          "integrity": "sha512-oWb1Z6mkHIskLzEJ/XWX0srkpkTQ7vaopMQkyaEIoq0fmtFVxOthb8cCxeT+p3ynTdkk/RZwbgG4brR5BeWECw==",
+          "requires": {
+            "bindings": "^1.5.0",
+            "nan": "^2.12.1"
+          }
+        }
       }
     },
     "chokidar-cli": {
@@ -1642,12 +1652,6 @@
             "to-regex-range": "^5.0.1"
           }
         },
-        "fsevents": {
-          "version": "2.1.2",
-          "resolved": "https://registry.npmjs.org/fsevents/-/fsevents-2.1.2.tgz",
-          "integrity": "sha512-R4wDiBwZ0KzpgOWetKDug1FZcYhqYnUYKtfZYt4mD5SBz76q0KR4Q9o7GIPamsVPGmW3EYPPJ0dOOjvx32ldZA==",
-          "optional": true
-        },
         "get-caller-file": {
           "version": "2.0.5",
           "resolved": "https://registry.npmjs.org/get-caller-file/-/get-caller-file-2.0.5.tgz",
@@ -2693,488 +2697,9 @@
       "integrity": "sha1-FQStJSMVjKpA20onh8sBQRmU6k8="
     },
     "fsevents": {
-      "version": "1.2.12",
-      "resolved": "https://registry.npmjs.org/fsevents/-/fsevents-1.2.12.tgz",
-      "integrity": "sha512-Ggd/Ktt7E7I8pxZRbGIs7vwqAPscSESMrCSkx2FtWeqmheJgCo2R74fTsZFCifr0VTPwqRpPv17+6b8Zp7th0Q==",
-      "optional": true,
-      "requires": {
-        "bindings": "^1.5.0",
-        "nan": "^2.12.1",
-        "node-pre-gyp": "*"
-      },
-      "dependencies": {
-        "abbrev": {
-          "version": "1.1.1",
-          "bundled": true,
-          "optional": true
-        },
-        "ansi-regex": {
-          "version": "2.1.1",
-          "bundled": true,
-          "optional": true
-        },
-        "aproba": {
-          "version": "1.2.0",
-          "bundled": true,
-          "optional": true
-        },
-        "are-we-there-yet": {
-          "version": "1.1.5",
-          "bundled": true,
-          "optional": true,
-          "requires": {
-            "delegates": "^1.0.0",
-            "readable-stream": "^2.0.6"
-          }
-        },
-        "balanced-match": {
-          "version": "1.0.0",
-          "bundled": true,
-          "optional": true
-        },
-        "brace-expansion": {
-          "version": "1.1.11",
-          "bundled": true,
-          "optional": true,
-          "requires": {
-            "balanced-match": "^1.0.0",
-            "concat-map": "0.0.1"
-          }
-        },
-        "chownr": {
-          "version": "1.1.4",
-          "bundled": true,
-          "optional": true
-        },
-        "code-point-at": {
-          "version": "1.1.0",
-          "bundled": true,
-          "optional": true
-        },
-        "concat-map": {
-          "version": "0.0.1",
-          "bundled": true,
-          "optional": true
-        },
-        "console-control-strings": {
-          "version": "1.1.0",
-          "bundled": true,
-          "optional": true
-        },
-        "core-util-is": {
-          "version": "1.0.2",
-          "bundled": true,
-          "optional": true
-        },
-        "debug": {
-          "version": "3.2.6",
-          "bundled": true,
-          "optional": true,
-          "requires": {
-            "ms": "^2.1.1"
-          }
-        },
-        "deep-extend": {
-          "version": "0.6.0",
-          "bundled": true,
-          "optional": true
-        },
-        "delegates": {
-          "version": "1.0.0",
-          "bundled": true,
-          "optional": true
-        },
-        "detect-libc": {
-          "version": "1.0.3",
-          "bundled": true,
-          "optional": true
-        },
-        "fs-minipass": {
-          "version": "1.2.7",
-          "bundled": true,
-          "optional": true,
-          "requires": {
-            "minipass": "^2.6.0"
-          }
-        },
-        "fs.realpath": {
-          "version": "1.0.0",
-          "bundled": true,
-          "optional": true
-        },
-        "gauge": {
-          "version": "2.7.4",
-          "bundled": true,
-          "optional": true,
-          "requires": {
-            "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"
-          }
-        },
-        "glob": {
-          "version": "7.1.6",
-          "bundled": true,
-          "optional": true,
-          "requires": {
-            "fs.realpath": "^1.0.0",
-            "inflight": "^1.0.4",
-            "inherits": "2",
-            "minimatch": "^3.0.4",
-            "once": "^1.3.0",
-            "path-is-absolute": "^1.0.0"
-          }
-        },
-        "has-unicode": {
-          "version": "2.0.1",
-          "bundled": true,
-          "optional": true
-        },
-        "iconv-lite": {
-          "version": "0.4.24",
-          "bundled": true,
-          "optional": true,
-          "requires": {
-            "safer-buffer": ">= 2.1.2 < 3"
-          }
-        },
-        "ignore-walk": {
-          "version": "3.0.3",
-          "bundled": true,
-          "optional": true,
-          "requires": {
-            "minimatch": "^3.0.4"
-          }
-        },
-        "inflight": {
-          "version": "1.0.6",
-          "bundled": true,
-          "optional": true,
-          "requires": {
-            "once": "^1.3.0",
-            "wrappy": "1"
-          }
-        },
-        "inherits": {
-          "version": "2.0.4",
-          "bundled": true,
-          "optional": true
-        },
-        "ini": {
-          "version": "1.3.5",
-          "bundled": true,
-          "optional": true
-        },
-        "is-fullwidth-code-point": {
-          "version": "1.0.0",
-          "bundled": true,
-          "optional": true,
-          "requires": {
-            "number-is-nan": "^1.0.0"
-          }
-        },
-        "isarray": {
-          "version": "1.0.0",
-          "bundled": true,
-          "optional": true
-        },
-        "minimatch": {
-          "version": "3.0.4",
-          "bundled": true,
-          "optional": true,
-          "requires": {
-            "brace-expansion": "^1.1.7"
-          }
-        },
-        "minimist": {
-          "version": "1.2.5",
-          "bundled": true,
-          "optional": true
-        },
-        "minipass": {
-          "version": "2.9.0",
-          "bundled": true,
-          "optional": true,
-          "requires": {
-            "safe-buffer": "^5.1.2",
-            "yallist": "^3.0.0"
-          }
-        },
-        "minizlib": {
-          "version": "1.3.3",
-          "bundled": true,
-          "optional": true,
-          "requires": {
-            "minipass": "^2.9.0"
-          }
-        },
-        "mkdirp": {
-          "version": "0.5.3",
-          "bundled": true,
-          "optional": true,
-          "requires": {
-            "minimist": "^1.2.5"
-          }
-        },
-        "ms": {
-          "version": "2.1.2",
-          "bundled": true,
-          "optional": true
-        },
-        "needle": {
-          "version": "2.3.3",
-          "bundled": true,
-          "optional": true,
-          "requires": {
-            "debug": "^3.2.6",
-            "iconv-lite": "^0.4.4",
-            "sax": "^1.2.4"
-          }
-        },
-        "node-pre-gyp": {
-          "version": "0.14.0",
-          "bundled": true,
-          "optional": true,
-          "requires": {
-            "detect-libc": "^1.0.2",
-            "mkdirp": "^0.5.1",
-            "needle": "^2.2.1",
-            "nopt": "^4.0.1",
-            "npm-packlist": "^1.1.6",
-            "npmlog": "^4.0.2",
-            "rc": "^1.2.7",
-            "rimraf": "^2.6.1",
-            "semver": "^5.3.0",
-            "tar": "^4.4.2"
-          }
-        },
-        "nopt": {
-          "version": "4.0.3",
-          "bundled": true,
-          "optional": true,
-          "requires": {
-            "abbrev": "1",
-            "osenv": "^0.1.4"
-          }
-        },
-        "npm-bundled": {
-          "version": "1.1.1",
-          "bundled": true,
-          "optional": true,
-          "requires": {
-            "npm-normalize-package-bin": "^1.0.1"
-          }
-        },
-        "npm-normalize-package-bin": {
-          "version": "1.0.1",
-          "bundled": true,
-          "optional": true
-        },
-        "npm-packlist": {
-          "version": "1.4.8",
-          "bundled": true,
-          "optional": true,
-          "requires": {
-            "ignore-walk": "^3.0.1",
-            "npm-bundled": "^1.0.1",
-            "npm-normalize-package-bin": "^1.0.1"
-          }
-        },
-        "npmlog": {
-          "version": "4.1.2",
-          "bundled": true,
-          "optional": true,
-          "requires": {
-            "are-we-there-yet": "~1.1.2",
-            "console-control-strings": "~1.1.0",
-            "gauge": "~2.7.3",
-            "set-blocking": "~2.0.0"
-          }
-        },
-        "number-is-nan": {
-          "version": "1.0.1",
-          "bundled": true,
-          "optional": true
-        },
-        "object-assign": {
-          "version": "4.1.1",
-          "bundled": true,
-          "optional": true
-        },
-        "once": {
-          "version": "1.4.0",
-          "bundled": true,
-          "optional": true,
-          "requires": {
-            "wrappy": "1"
-          }
-        },
-        "os-homedir": {
-          "version": "1.0.2",
-          "bundled": true,
-          "optional": true
-        },
-        "os-tmpdir": {
-          "version": "1.0.2",
-          "bundled": true,
-          "optional": true
-        },
-        "osenv": {
-          "version": "0.1.5",
-          "bundled": true,
-          "optional": true,
-          "requires": {
-            "os-homedir": "^1.0.0",
-            "os-tmpdir": "^1.0.0"
-          }
-        },
-        "path-is-absolute": {
-          "version": "1.0.1",
-          "bundled": true,
-          "optional": true
-        },
-        "process-nextick-args": {
-          "version": "2.0.1",
-          "bundled": true,
-          "optional": true
-        },
-        "rc": {
-          "version": "1.2.8",
-          "bundled": true,
-          "optional": true,
-          "requires": {
-            "deep-extend": "^0.6.0",
-            "ini": "~1.3.0",
-            "minimist": "^1.2.0",
-            "strip-json-comments": "~2.0.1"
-          }
-        },
-        "readable-stream": {
-          "version": "2.3.7",
-          "bundled": true,
-          "optional": true,
-          "requires": {
-            "core-util-is": "~1.0.0",
-            "inherits": "~2.0.3",
-            "isarray": "~1.0.0",
-            "process-nextick-args": "~2.0.0",
-            "safe-buffer": "~5.1.1",
-            "string_decoder": "~1.1.1",
-            "util-deprecate": "~1.0.1"
-          }
-        },
-        "rimraf": {
-          "version": "2.7.1",
-          "bundled": true,
-          "optional": true,
-          "requires": {
-            "glob": "^7.1.3"
-          }
-        },
-        "safe-buffer": {
-          "version": "5.1.2",
-          "bundled": true,
-          "optional": true
-        },
-        "safer-buffer": {
-          "version": "2.1.2",
-          "bundled": true,
-          "optional": true
-        },
-        "sax": {
-          "version": "1.2.4",
-          "bundled": true,
-          "optional": true
-        },
-        "semver": {
-          "version": "5.7.1",
-          "bundled": true,
-          "optional": true
-        },
-        "set-blocking": {
-          "version": "2.0.0",
-          "bundled": true,
-          "optional": true
-        },
-        "signal-exit": {
-          "version": "3.0.2",
-          "bundled": true,
-          "optional": true
-        },
-        "string-width": {
-          "version": "1.0.2",
-          "bundled": true,
-          "optional": true,
-          "requires": {
-            "code-point-at": "^1.0.0",
-            "is-fullwidth-code-point": "^1.0.0",
-            "strip-ansi": "^3.0.0"
-          }
-        },
-        "string_decoder": {
-          "version": "1.1.1",
-          "bundled": true,
-          "optional": true,
-          "requires": {
-            "safe-buffer": "~5.1.0"
-          }
-        },
-        "strip-ansi": {
-          "version": "3.0.1",
-          "bundled": true,
-          "optional": true,
-          "requires": {
-            "ansi-regex": "^2.0.0"
-          }
-        },
-        "strip-json-comments": {
-          "version": "2.0.1",
-          "bundled": true,
-          "optional": true
-        },
-        "tar": {
-          "version": "4.4.13",
-          "bundled": true,
-          "optional": true,
-          "requires": {
-            "chownr": "^1.1.1",
-            "fs-minipass": "^1.2.5",
-            "minipass": "^2.8.6",
-            "minizlib": "^1.2.1",
-            "mkdirp": "^0.5.0",
-            "safe-buffer": "^5.1.2",
-            "yallist": "^3.0.3"
-          }
-        },
-        "util-deprecate": {
-          "version": "1.0.2",
-          "bundled": true,
-          "optional": true
-        },
-        "wide-align": {
-          "version": "1.1.3",
-          "bundled": true,
-          "optional": true,
-          "requires": {
-            "string-width": "^1.0.2 || 2"
-          }
-        },
-        "wrappy": {
-          "version": "1.0.2",
-          "bundled": true,
-          "optional": true
-        },
-        "yallist": {
-          "version": "3.1.1",
-          "bundled": true,
-          "optional": true
-        }
-      }
+      "version": "2.1.3",
+      "resolved": "https://registry.npmjs.org/fsevents/-/fsevents-2.1.3.tgz",
+      "integrity": "sha512-Auw9a4AxqWpa9GUfj370BMPzzyncfBABW8Mab7BGWBYDj4Isgq+cDKtx0i6u9jcX9pQDnswsaaOTgTmA5pEjuQ=="
     },
     "function-bind": {
       "version": "1.1.1",
@@ -4205,8 +3730,7 @@
     "nan": {
       "version": "2.14.0",
       "resolved": "https://registry.npmjs.org/nan/-/nan-2.14.0.tgz",
-      "integrity": "sha512-INOFj37C7k3AfaNTtX8RhsTw7qRy7eLET14cROi9+5HAVbbHuIWUHEauBv5qT4Av2tWasiTY1Jw6puUNqRJXQg==",
-      "optional": true
+      "integrity": "sha512-INOFj37C7k3AfaNTtX8RhsTw7qRy7eLET14cROi9+5HAVbbHuIWUHEauBv5qT4Av2tWasiTY1Jw6puUNqRJXQg=="
     },
     "nanomatch": {
       "version": "1.2.13",