Improved rendering of Starling instance by removing it from the internal process manger update, just using native stage onEnterFrame
Change the rendering order of scene object renderers to render after scene
exposed sampleRate property from mp3parser
Optimized entity findProperty a bit and exiting Profiler calls if running a production build of the engine with PBE.IS_SHIPPING_BUILD turned on.
Made the screen manager more generic and removed dependency on flash display list
Cleaned up caching and releasing cache of spritesheets with caching enabled. Also added a isDestroyed getter to all spritesheets