Issue #5695: Update Facebook plugin
Issue #5695: Update Facebook plugin
Merge pull request #2118 from dingpinglv/Iss5813_BlendFunc

Closed #5813: Refactor sprite's blendFunc to support more features on Canvas
Merge pull request #2119 from VisualSJ/develop-facebook

Develop facebook
Closed #5813: refactor code of cc.Sprite.setBlendFunc and cc.LayerColor.setBlendFunc