Adds NativeClass._is_method_in_parents to check whether override function is in its parent class recursively.
Merge branch 'develop' of git://github.com/cocos2d/bindings-generator into add-is-method-in-parent
Merge pull request #63 from dumganhar/add-is-method-in-parent

Adds NativeClass._is_method_in_parents to check whether override function is in its parent class recursively.