1.  Target and project 都改为OSX 10.8  和  Target 10.7.
Merge pull request #45 from xiexin36/RefreshResSupportInCocos2dx_MSystem

1.  Target and project 都改为OSX 10.8  和  Target 10.7.
Merge pull request #47 from 2youyouo2/RefreshResSupportInCocos2dx

add gotoFrameAndPlay and setCurrentFrame interface
fixed read TextureFrame