Move renderables to its own file.
Fix rgba - argb conversion.
Create canvases from bitmap data, and some renaming.
Fix compilation error
BitmapData pixel manipulation functions (WIP, straight alpha, missing tests)
Convert to unsinged only when returning.
Merge.
Update BitmapData
Merge branch 'nat' of https://github.com/mozilla/shumway into nat
Mo updates
Optimize and inline premultiplication
Merge branch 'nat' of https://github.com/mozilla/shumway into nat
Update bitmaps on the GFX side, should work in the Canvas2D backend.
makes mouse wheel work again