Issue #4580: Make Texture2d constants values equals to Cocos2d-x
Issue #4589: Make actions extendable directly via ctor pack 1
Merge branch 'develop-3.0' of git://github.com/cocos2d/cocos2d-html5 into develop-3.0
Merge pull request #1727 from pandamicro/develop-3.0

Issue #4589: Make actions extendable directly via ctor pack 1