issue #5685: refactor scale9sprite to support extend
Merge branch 'master' of https://github.com/cocos2d/cocos2d-js

Conflicts:
	frameworks/js-bindings/bindings/script/jsb_cocos2d.js
	tools/tojs/cocos2dx_extension.ini
fix bindings-generator ref
fix ref
issue #5685: replace all create functions in ControlExtensionTest
add control in class_need_extend
add extend function for cccontrol
Merge pull request #618 from joshuastray/master

issue #5685: refactor scale9sprite to support extend