1. add libraries folder to cocos2d-x/platform/third_party

2. modify CocoWidget, CocoButton, CocoImageView, CocoScrollView, CocoSlider, CocoTextField, CRenderNode, CTextField, UITextField, CSSReader, CocoStudioGUI, CCScaleSprite, CocoGUISample.json
3. add CocoImageButton, slider_bar_active_9patch.png