Merge pull request #1908 from dingpinglv/Iss5096_Renderer

Issue #5096: refactor setVisible and cc.ClippingNode
Issue #5096: sprite flip
Merge pull request #1909 from VisualSJ/Renderer

Issue #5096: sprite flip
Issue #5096: Fixed a bug that DrawNodeRenderCmdCanvas
Issue #5096: cc.TintTo and cc.TintBy
Fixed #5540: Refactor ccui.TextAtlas setStringValue to setString
Issue #5096: Modify the part of the method (drawNode and cc.TintTo)
Issue #5096: Sprite update texture
Issue #5096: remove color - a
Issue #5096: remove locScaleY and locScaleX.
Merge pull request #1910 from VisualSJ/Renderer

Issue #5096: Fixed a bug about DrawNodeRenderCmdCanvas
Merge pull request #1911 from pandamicro/develop

Fixed #5540: Refactor ccui.TextAtlas setStringValue to setString
Issue #5096: fix a bug of cc.LayerColor that its setColor is incorrect.
Merge branch 'Renderer' of https://github.com/cocos2d/cocos2d-html5 into Iss5096_Renderer
Merge branch 'develop' of https://github.com/cocos2d/cocos2d-html5 into Iss5096_Renderer
fixed cc.Skin bounding box calculation for canvas rendering
Issue #5096: fixed animation
Merge pull request #1913 from VisualSJ/Renderer

Issue #5096: fixed animation
Issue ##5548: May create an empty action
Merge pull request #1915 from VisualSJ/develop-5548

Issue ##5548: May create an empty action