OS X: Correct the symlink to the Cg framework
OS X: Correct the symlink to the Cg framework

--HG--
branch : v1-8

bhlzlx/ogre,ruleless/ogre,ehsan/ogre,ehsan/ogre,ruleless/ogre,ruleless/ogre,ruleless/ogre,ehsan/ogre,ruleless/ogre,bhlzlx/ogre,ehsan/ogre,bhlzlx/ogre,bhlzlx/ogre,bhlzlx/ogre,ehsan/ogre,bhlzlx/ogre,ruleless/ogre