issue #2784:Add js-binding and lua-binding document
Merge branch 'develop' of https://github.com/cocos2d/cocos2d-x into doxygen
issue #2784:Delete class destuctor js-binding and lua-binding document
Merge branch 'develop' of https://github.com/cocos2d/cocos2d-x into doxygen

Conflicts:
	cocos2dx/label_nodes/CCLabel.h
issue #2784:Add class constructor js-binding document
Merge pull request #3591 from samuele3hu/doxygen

issue #2784:Add js-binding and lua-binding document