Fixed #5782: Refactored all actions to lower case creation function
Issue #5781: Bind ReverseTime action
Merge branch 'master' of https://github.com/cocos2d/cocos2d-js
Update -x ref with plugin-x
Merge branch 'master' of https://github.com/cocos2d/cocos2d-js
Merge pull request #647 from pandamicro/master

Fixed #5782: Refactored all actions to lower case creation function