Merge pull request #1486 from pandamicro/develop

Fixed #3689: Correction of split logic in CCLabelTTF
Move CCFormatHelper’s content into CCFileUtils

In addition:
CCEGLView: Use frame to request full screen instead of canvas
Merge branch 'develop' of https://github.com/cocos2d/cocos2d-html5 into develop
closed #3652: armature animation does not display correctly in canvas
issue #3652: armature animation does not display correctly in canvas
Merge pull request #1487 from xingsenma/develop

closed #3652: armature animation does not display correctly in canvas
Refactor #3690: Move CCNS.js content into CCCommon.js
Merge pull request #1488 from pandamicro/develop

Move CCFormatHelper and CCNS content into CCCommon.js
Fixed #3709: Refactored cc.Screen to support all browsers
Tested on Safari / Chrome / Firefox / Opera, firefox and opera doesn’t take count of exitFullscreen function, all other functionalities works well
Merge pull request #1489 from pandamicro/develop

Fixed #3709: Refactored cc.Screen to support all browsers
issue #3652:  correct explain  for ccs.Widget
issue #3652:  correct the super of visit   for ccs.Layout
issue #3652: add convert string  for setText
closed #3652: armature animation does not display correctly in canvas
Merge branch 'develop' of https://github.com/cocos2d/cocos2d-html5 into develop_20131218
Merge pull request #1493 from xingsenma/develop

closed #3652: armature animation does not display correctly in canvas
issue #3731: Fix bugs of clone gui widget
Merge pull request #1496 from xingsenma/develop

issue #3731: Fix bugs of clone gui widget
Fixed #3588: correct a mistake of cc.SpriteFrameCache
Merge pull request #1499 from dingpinglv/Iss3588_RefactorArrayClear

Fixed #3588: correct a mistake of cc.SpriteFrameCache