Issue #5781: Fix template issue on iOS 5.0
Update submodules
Merge branch 'master' of https://github.com/cocos2d/cocos2d-js
Fixed #5977: Add cc.sys.platform
Fixed #5977: Correct __getPlatform behavior in jsb
Fixed #5977: Update html5
Merge branch 'master' of https://github.com/cocos2d/cocos2d-js
Issue #5781: Fix Cocostudio Scene test crash issues
Merge branch 'master' of https://github.com/cocos2d/cocos2d-js
Issue #5781: Fix Cocostudio Scene test crash issues
Merge pull request #673 from pandamicro/master

Fix issues and add cc.sys.platfom