SubMesh and Attachment
add skeleton and refactor skin
merge cocos2d
add CC_DLL
skeleton retain
add axe model
android work
remove .xcscheme
windows works
Merge pull request #72 from songmiao/v3

windows works
code style adjust according minggo
add comment
add Quaternion::ZERO
code adjust
merge cocos2d
code adjust
adjust
adjust
adjust
merge cocos2d, fix lua