Update v1.0.6

public/filemanager/scripts/dropzone/CONTRIBUTING.md

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+Contribute
+==========
+
+
+> I have changed my branching model recently (November 2013)! Previously
+> the latest version was always in develop, and pull request had to be
+> made on this branch. This is no longer the case!
+
+
+The latest version is always in the **[master](https://github.com/enyo/dropzone)**
+branch.
+
+
+> Please provide a test for any new feature (see the [testing section](#testing) below).
+
+
+Communicate
+-----------
+
+Before you start implementing new features, please create an issue about
+it first and discuss your intent.
+
+It might be something that someone else is already implementing or that
+goes against the concepts of Dropzone, and I really hate rejecting pull
+requests others spent hours writing on.
+
+
+Developer Dependencies
+----------------------
+
+The first thing you need to do, is to install the developer dependencies:
+
+```bash
+$ npm install
+```
+
+This will install all the tools you need to compile the source files and to test
+the library.
+
+
+Coffeescript & Stylus (-> Javascript & CSS)
+------------------------------------------
+
+Dropzone is written in [Coffeescript](http://coffeescript.org) and
+[Stylus](http://learnboost.github.com/stylus/) so *do not* make
+changes to the Javascript or CSS files
+
+**I will not merge requests written in Javascript or CSS.**
+
+Please don't include compiled `.js` or `.css` files in your pull requests but only
+`.coffee` or `.styl` files. That way pull requests aren't polluted and I can see
+immediately what you changed.
+
+
+To build the library use [grunt](http://gruntjs.com).
+
+```bash
+$ grunt -h # Displays available options
+$ grunt # compiles all coffeescript and stylus files
+$ grunt watch # watches for changes and builds on the fly
+```
+
+> I recommend using `grunt watch` when you begin developing. This way you can't
+> forget to compile the source files and will avoid headaches.
+
+
+Testing
+-------
+
+To test the library, open `test/test.html` in your browser or type `npm test`
+which will run the tests in your console in a headless browser.
+
+The tests are also written in coffeescript in the `test/test.coffee` file,
+and compiled with `grunt js` or `grunt watch`.
+
+
+* Thanks for contributing!*
+