Fixed Scale9Bitmap math
Added Mouse.registerCursor
Adde BitmapData.toDataUrl
Added Stage.onMouseLeave event
Updated unittest dependency
Fixed broken audio loader in IE
Fixed render engine for IE9
Enable mouse and touch events on Stage
Declare return type of getChildAt/getChildByName

Previously we were using "dynamic" which was useful in some cases, but
in general it is better to return a DisplayObject.
Make CORS for image loading optional
Added frameMargin and frameSpacing for tilesets

Thanks to @Moeplhausen for this change
Improved GC for WebGL renderer
Fixed filters
Version 0.9.3
Fixed ChangeLog
Added workaround for IE web font issue

This is really a strang workaround, adding a space at the end of the
font style ssems to fix the issue in IE. But it only works if the space
is added right where the style is assigned!?
Minor code beautification
Make renderer work in CocoonJS

Currently only the Canvas2D renderer works. It seems there is a bug in
CocoonJS Canvas+ which has to be fixed first.
Make touch work in CocoonJS
Removed js alias for dart:js