issue #5740: refactor Scale9Sprite create & ctor
refactor ControlButton create & ctor
refactor colorpicker, potentiometer, slider, stepper, switch
Issue #5703: Fix bug
Merge pull request #2006 from VisualSJ/develop-test

Issue #5703: Fix bug
Merge pull request #2004 from joshuastray/issue5685

issue #5740: refactor Scale9Sprite create & ctor
Merge pull request #2005 from joshuastray/control

Feature #5740 Refactor new construction for old gui extension
Issue #5704: fixed some mistakes of ccui.Widget, ccui.RichText, ccui.Text
Merge branch 'develop' of https://github.com/cocos2d/cocos2d-html5 into Iss5704_CCUIPreformance