Added

• Renderable : added the possibility to specify a blend mode per renderable
• Renderer: added missing compatible/supported blend mode across the canvas and WebGL renderer ("normal", "multiply", "lighter, "screen")
• Renderable : new (simple) word wrapping feature for Text and BitmapText classes

Changed

• Renderable : refactor of Text and BitmapText to isolate metrics related features/functions and standardize the api between the 2 classes

Fixed

• Container: mark a container as dirty when changing own child(s) order using MoveTo[Top/Bottom], move[Up/Down] and swapChildren
• Renderable : fix NineSliceSprite bounding box not being properly scaled up
• Renderer: fix blend mode in WebGL rendering mode