Merge pull request #7 from VisualSJ/Iss2416_RefactorRenderer

Fix layer set Color
Issue #2416: correct some mistakes for renderer
Merge pull request #8 from VisualSJ/Iss2416_RefactorRenderer

Iss2416 refactor renderer
Merge branch 'Iss2416_RefactorRenderer' of https://github.com/dingpinglv/cocos2d-html5 into Iss2416_RefactorRenderer
Progress Timer renderCmd