rename startup@2x.jpg to startupHD.jpg
updating back buffer size info in shared context situations (closes #234)
added link to shared-context tutorial in Starling wiki
added some missing int-casts on array/vector access (for better performance)
added 'RenderSupport.assembleAgal'
added even more int-casts
added 'Starling.contextData' property, replacing 'Starling.customData
now listening to context3D events when context is shared, as well

This allows handling a lost context when it's a shared one
updated comment
asset manager now logs warning if a file is not found (closes #246)
updated swc to latest RC version
Merge branch 'master' of github.com:PrimaryFeather/Starling-Framework
optimized MovieClip.fps setter (closes #243)
Merge pull request #236 from uenon/renameStartupImageFile

renamed "startup@2x.jpg" to "startupHD.jpg" because of a strange compiler problem
removing CONTEXT3D_CREATE handler in dispose method of FragmentFilter (closes #247)
Merge branch 'master' of github.com:PrimaryFeather/Starling-Framework
renamed 'generateMipMaps' to 'useMipMaps' and using it for ATF files, too (closes #244)
Merge pull request #3 from PrimaryFeather/master

Updated from Primary Feather