Allow defining functions in requirejs.yml

[wuservices]

Some RequireJS config options such as init need a function, however
YAML and JSON can only store data - not JavaScript. As a workaround
this detects a function and unescapes it when the config is added
to the page in the helper.

Fixes #177

[carsomyr]

@wuservices Could you provide an example?

[carsomyr]

See #177.

[wuservices]

Example:

shim:
  underscore:
    exports: _
    init: |
      function() {
        this._.templateSettings.interpolate = /\{\{(.+?)\}\}/g;
      }
  twitter/bootstrap/button:
    deps: [jquery]
    # Reverts $.fn.button to jQuery UI btn and
    # assigns Bootstrap button functionality to $.fn.btn
    init: |
      function($) {
        var btn = $.fn.button.noConflict();
        $.fn.btn = btn;
      }

[steveklebanoff]

+1

[garbles]

+1
@carsomyr any reason why this can't be merged in? Would be nice to have!