extracted sourceFile list into json file
added me.skipAutoInit to allow for asynchronous loading of individual
sourceFiles
Merge branch '1.0.0-dev' of https://github.com/melonjs/melonJS.git into
1.0.0-dev

Conflicts:
	Gruntfile.js
	src/core.js
Merge pull request #442 from insidiator/build-system

Some small changes to help loading melonJS sources directly