C3DVector -> Vector
C3DMatrix->Matrix
Merge branch '3d-extension' of https://github.com/houguohua/cocos2d-x into 3d-extension
some change
Merge pull request #15 from super626/3d-extension

animation
math part and include file
some change
Add const for getXXX functions
Merge pull request #17 from zhukaixy/3d-extension

Add const for getXXX functions
Merge pull request #16 from lvlonggame/3d-extension

some change
add model and resource loader