Updated documentation and notes, and added OpenFL
More homepage tweaks
Merge branch 'master' into gh-pages

Conflicts:
	api/android.html
	api/as3.html
	api/csharp.html
	api/errorcodes.html
	api/html5.html
	api/ios.html
	api/unity3d.html
	apis.html
	css/custom.css
	index.html
	server.html