Convert to JavaScript for improved collabortation

[jpillora]

Although CoffeeScript is awesome, not everyone is familiar with it. So, to improve the community's ability to collaborate, the source src/jquery.coffee.coffee should be translated to .js. Note, this repos build should still work with .js files instead of .coffee files, however, if plain Grunt is prefered over Grunt Source, the Grunt files may be copied out of Grunt Source JS Lib to this repo.