Issue #3943: Add the cc.action.repeat() and cc.action.repeatForever()
Issue #3943: Change the value of times
Issue #3943: add a reverse sample function to cc.easeElasticOut
Merge branch 'develop' of https://github.com/cocos2d/cocos2d-html5 into Iss3943_ActionAPI
Issue #3943: Modification of clone, reverse and getDuration
Issue #3943: Compatible with old class
Merge branch 'Iss3943_ActionAPI' of https://github.com/dingpinglv/cocos2d-html5 into develop-repeat
Issue #3943: Ease reverse
Issue #3943: Removal map method
Issue #3943: Modify update methods, and ease
Merge pull request #1839 from VisualSJ/develop-repeat

Issue #3943: Add the cc.action.repeat() and cc.action.repeatForever()