issue #3690: Rewrite CCNS.js
Merge pull request #1485 from SmallAiTT/iss3690_ccns_dev3.0

issue #3690: Rewrite CCNS.js
Merge branch 'develop-3.0' of https://github.com/cocos2d/cocos2d-html5 into develop

Conflicts:
	cocos2d/cocoa/CCNS.js
Fixed #3841: Use event on cc.canvas to make full screen request
Merge branch 'develop' of https://github.com/cocos2d/cocos2d-html5 into develop
update Tab
Update tab2
Merge pull request #1518 from pandamicro/develop

Fixed #3841: Use event on cc.canvas to make full screen request