Merge pull request #61 from pjona/patch-4

Added new functions to README.md, and update ChangeLog

README.md

@@ -22,7 +22,7 @@ You can install this package either with `npm` or with `bower`.
 ### npm
 
 ```shell
-npm install nestable2
+npm install --save nestable2
 ```
 
 Then add a `<script>` to your `index.html`:
@@ -36,7 +36,7 @@ Or `require('nestable2')` from your code.
 ### bower
 
 ```shell
-bower install nestable2
+bower install --save nestable2
 ```
 
 ## Usage
@@ -138,10 +138,35 @@ The serialised JSON for the example above would be:
 ```json
 [{"id":1},{"id":2},{"id":3,"children":[{"id":4},{"id":5,"foo":"bar"}]}]
 ```
+
+`toArray`:
+```js
+$('.dd').nestable('toArray');
+```
+Builds an array where each element looks like:
+```json
+{
+    'depth': depth',
+    'id': id,
+    'left': left,
+    'parent_id': parentId || null,
+    'right': right
+}
+```
+
+You can get a hierarchical nested set model like below.
+```js
+$('.dd').nestable('asNestedSet');
+```
+The output will be like below:
+```js
+[{"id":1,"parent_id":"","depth":0,"lft":1,"rgt":2},{"id":2,"parent_id":"","depth":0,"lft":3,"rgt":4},{"id":3,"parent_id":"","depth":0,"lft":5,"rgt":10},{"id":4,"parent_id":3,"depth":1,"lft":6,"rgt":7},{"id":5,"parent_id":3,"depth":1,"lft":8,"rgt":9}]
+```
+
 `destroy`:
 You can deactivate the plugin by running
 ```js
-    $('.dd').nestable('destroy');
+$('.dd').nestable('destroy');
 ```
 
 
@@ -237,12 +262,33 @@ These advanced config options are also available:
 
 ## Change Log
 
+### 22th May 2017
+
+* [pjona] Added npm installation
+
+### 10th April 2017
+
+* [timalennon] Added functions: `toHierarchy` and `toArray`
+
+### 17th November 2015
+
+* [oimken] Added `destroy` function
+
+### 2nd November 2015
+
+* [ivanbarlog] Added `onDragStart` event fired when user starts to drag an element
+
+### 21th April 2015
+
+* [ozdemirburak] Added `asNestedSet` function
+* [ozdemirburak] Added bower installation
+
 ### 6th October 2014
 
 * [zemistr] Created listRenderer and itemRenderer. Refactored build from JSON.
 * [zemistr] Added support for adding classes via input data. (```[{"id": 1, "content": "First item", "classes": ["dd-nochildren", "dd-nodrag", ...] }, ... ]```)
 
-### 3th October 2014
+### 3rd October 2014
 
 * [zemistr] Added support for additional data parameters.
 * [zemistr] Added callback for customizing content.