Optimize alpha blending using pre-computed tables. This is nearly 50% faster in FF and Chrome.
Move convertImage to utilities and fix a regression (that ended up fixing even more bugs in Canabalt.)
Add platformer example to acid tests.
Optimize some of the cases where BitmapDatas have solid fills.

Flixel uses a BitmapData as a fill texture which is used as a source in copyPixels. The fill texture has a solid color (as a result of fillRect()). If we know that the source texture is a solid color we can usually do better in certain blending / copying operations, so it is worth keeping track of solid fills.
Merge pull request #1736 from mbebenita/bitmapData

Bitmap data