All the platforms!

![](http://media.giphy.com/media/kDbiE1vK2x29O/giphy.gif)

Initial working build for Android, iOS, and Firefox OS:
- Remove the "generic" nature of beaker and just focus on the Webmaker.app
- Track platforms / builds in the repo
- Add iOS platform
    - Minor modifications to the xcode project, js, and css to resolve common issues with `UIWebView`
    - Initial configuration
- Add Android platform
- Add Firefox OS platform
- Minor changes to the `www` project
    - Fix border rendering on `iframe`
    - Add `fastclick` library to `index.html`