issue #3767 Add DrawingPrimitive function for cc.DrawNode
Merge branch 'develop' of https://github.com/cocos2d/cocos2d-html5 into develop_20131218
issue #3667: Add DrawingPrimitive function for cc.DrawNode
Merge pull request #1504 from xingsenma/develop

issue #3667: Add DrawingPrimitive function for cc.DrawNode