Issue #4294: Bind ccui constants
Issue #4294: Apply new ccui constants in tests
Merge branch 'master' of https://github.com/cocos2d/cocos2d-js
Issue #4294: Bind get/setVertexZ for Sprite
Issue #4294: Reverse NodeGrid setGrid auto binding
Issue #4294: Bind ccii.helper
Issue #4294: Fix bug of UIText positioning in GUI tests
Merge pull request #88 from pandamicro/master

Issue #4294: Bind ccui.helper, ccui constants, Sprite::get/setVertexZ