Require.js support

```
It's will be greate, to have Require.js support - similar to sbt support 
(http://www.playframework.com/documentation/2.2.x/RequireJS-support):
precisly support of requireJsShim is required.

```

Original issue reported on code.google.com by `Anton.a...@gmail.com` on 5 Dec 2013 at 6:20
