Merge pull request #2055 from dingpinglv/Iss5704_FixUIBug

Fixed #5704: fixed a bug of WidgetReader that it gets a incorrect value when color's value is 0
Fixed #2045: Reconstruction of the wrap algorithm
1. Change character ( The east to the West )
2. Add cc.LabelTTF.wrapInspection to control letters ( check symbol that put in first place )
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Merge pull request #2056 from VisualSJ/develop-rc2_test

Fixed #2045: Reconstruction of the wrap algorithm
Fixed #5702: Fixed CCScale9Sprite Fuzzy ( Distinguish webgl )
Merge pull request #2057 from VisualSJ/develop-rc2_test

Fixed #5702: Fixed CCScale9Sprite Fuzzy ( Distinguish webgl )
Fixed #5704: correct a mistake of cc.Sprite
Merge branch 'develop' of git://github.com/cocos2d/cocos2d-html5 into Iss5704_FixUIBug