Merge pull request #2 from cocos2d/master

merge
Merge branch 'master' of https://github.com/cocos2d/cocos2d-js
Closed #5107: Ease api modification
Issue #5106: Add test cases with an index
Issue #5109: modified repeat method
Add test case page
Merge branch 'master' of https://github.com/cocos2d/cocos2d-js
Merge pull request #3 from cocos2d/master

merge  from cocos2d
Merge branch 'master' of http://github.com/VisualSJ/cocos2d-js
Merge pull request
Merge pull request #371 from VisualSJ/master

Issue #5106: Modifying function