Merge pull request #30 from VisualSJ/Iss2416_RefactorRenderer

Issue #2416: Repair _cachedParent error
Issue #2416: refactor cc.NodeGrid's renderer
Merge branch 'Iss2416_RefactorRenderer' of https://github.com/dingpinglv/cocos2d-html5 into Iss2416_RefactorRenderer
Merge pull request #31 from VisualSJ/Iss2416_RefactorRenderer

Issue #2416: CCScrollView renderCmd
Issue #2416: Let effect advanced works.
Merge branch 'Iss2416_RefactorRenderer' of https://github.com/dingpinglv/cocos2d-html5 into Iss2416_RefactorRenderer
Merge branch 'Iss2416_RefactorRenderer' of http://github.com/dingpinglv/cocos2d-html5 into Iss2416_RefactorRenderer

Conflicts:
	cocos2d/core/base-nodes/CCNodeWebGLRenderCmd.js