1. add Spine LUA binding with testcase; 2. CCSkeleton inherites from Node since NodeRGBA is deprecated.
Merge branch 'lua_spine_dev' of https://github.com/edwardzhou/cocos2d-x into Spine
Modify iOS project set and some manual lua binding
Merge branch 'develop' of https://github.com/cocos2d/cocos2d-x into Spine
Delete some annotated  statement about spine and add some reserve manual lua binding functions
Merge branch 'develop' of https://github.com/cocos2d/cocos2d-x into Spine
Add include_directories for spine
Add missing file for linux lua binding
Merge pull request #4662 from samuele3hu/Spine

Add Spine lua binding with test case