Merge pull request #1331 from tschneidereit/nat

Implement Graphics#beginBitmapFill
Fix Rectangle::clip
Rename methods for consistency
BitmapData: bail out early if rect remains empty after clipping
Use a state flag instead of two boolean flags in the remoting code.
Merge branch 'nat' of https://github.com/mozilla/shumway into nat
Small optimizations for Rectangle
WIP: Implement BitmapData.draw
Stop using recently removed properties
Change the order in which children are serialized.
... we still gotta change the phase tho
Merge, WIP.
Merge, WIP.
Fix compiler errors
Merge branch 'nat' of github.com:mozilla/shumway into nat
Implement message type BitmapDataDraw, WIP
Fix transparency in BitmapData
Add comment about bitmap data pixels.
Flip byte order.
fixes bug in forEachInReverse: never visited first element