Support for multiple languages

.gitignore

@@ -1,2 +1,4 @@
 node_modules
-**.DS_Store
+**.DS_Store
+.vscode
+coverage

.travis.yml

@@ -0,0 +1,9 @@
+language: node_js
+node_js:
+  - "5"
+  - "5.1"
+  - "4"
+  - "4.2"
+  - "4.1"
+  - "4.0"
+after_success: 'npm run coveralls'

README.md

@@ -1,8 +1,11 @@
 # Node.js Profanity Utility
 
+[![Build Status](https://travis-ci.org/wagoid/nodejs-profanity-util.svg?branch=master)](https://travis-ci.org/wagoid/nodejs-profanity-util)
+[![Coverage Status](https://coveralls.io/repos/github/wagoid/nodejs-profanity-util/badge.svg?branch=master)](https://coveralls.io/github/wagoid/nodejs-profanity-util?branch=master)
+
 > Utility for detection, filtering and replacement / obscuration of forbidden words
 
-The original list of swearwords used by default was taken from [here](https://gist.github.com/jamiew/1112488).
+The original lists of swearwords used by default were taken from [here](https://gist.github.com/jamiew/1112488) and [here](https://github.com/shutterstock/List-of-Dirty-Naughty-Obscene-and-Otherwise-Bad-Words).
 
 **Please note:** This small utility module is written to prevent or monitor the use of certain words in your content without keeping context in account. An improper use may compromise the meaning of your content. Keep in account when using.
 
@@ -12,13 +15,15 @@ The original list of swearwords used by default was taken from [here](https://gi
 
 ## API
 
-### `profanity.check(target_string, [ forbidden_list ])`
+### `profanity.check(target_string, [languages], [ forbidden_list ])` 
+#####async version is also available: `profanity.checkAsync(target_string, [languages], [ forbidden_list ])`
 
 Returns a list of forbidden words found in a string.
 
 **Arguments**
 
 * `target_string` - String to search
+* `languages`  (Optional )- Array of languages  to check words from. Accepts a string if just one language is needed. 
 * `forbidden_list` (Optional) - Array containing forbidden terms
 
 **Example**
@@ -30,7 +35,24 @@ console.log(profanity.check('Lorem ipsum foo bar poop test poop damn dolor sit..
 // [ 'poop', 'poop', 'damn' ]
 ```
 
+Or the async method:
+
+```javascript
+var profanity = require('profanity-util');
+
+profanity.checkAsync('Lorem ipsum foo bar poop test poop damn dolor sit..')
+  .then(function (result) {
+    console.log(result);
+    // [ 'poop', 'poop', 'damn' ]
+  })
+  .catch(function (err) {
+    console.log('Something went wrong.');
+  });
+```
+
+
 ### `profanity.purify(target, [ options ])`
+#####async version is also available: `profanity.purifyAsync(target, [ options ])`
 
 Purifies a string or strings contained in a given object or array from forbidden words.
 
@@ -51,9 +73,11 @@ The .purify method will return an Array containing two values:
 **Options**
 
 * `forbiddenList` - Array of forbidden terms to replace or obscure
+* `languages` - Array of languages  to check words from. Accepts a string if just one language is needed. 
 * `replacementsList` - Array of replacement words (To pick randomly from)
 * `obscureSymbol` - Symbol used to obscure words if `obscured` is set to true
 * `replace`- If set to true it will replace forbidden words (E.g. a*****b) instead of obscuring them
+* `maxRecursionDepth` - If you are passing objects, a recursive iteration will be performed to fiind all strings inside it. You can set the maximum depth of the recursion.
 
 **Examples**
 
@@ -72,6 +96,21 @@ console.log(profanity.purify({
 // [ { foo: 'p**p', bar: { nested: 'd**n', arr: [ 'foo', 'p**p' ] } }, [ 'poop', 'damn', 'poop' ] ]
 ```
 
+Async version:
+
+```javascript
+var profanity = require('profanity-util');
+
+profanity.purify('lorem ipsum foo damn bar poop')
+  .then(function (result) {
+    console.log(result);
+    // [ 'lorem ipsum foo d**n bar p**p, [ 'damn', 'poop' ] ]
+  })
+  .catch(function (err) {
+    console.log('Something went wrong.');
+  });
+```
+
 **Obscure mode, custom options**
 
 ```javascript