Fix finding Ogre framework on OS X
Fix finding Ogre framework on OS X

--HG--
branch : v1-8

vancepym/ogre,jhu-lcsr-forks/ogre,vancepym/ogre,vancepym/ogre,largerussiangames/ogre,vancepym/ogre,largerussiangames/ogre,jhu-lcsr-forks/ogre,vancepym/ogre,jhu-lcsr-forks/ogre,jhu-lcsr-forks/ogre,largerussiangames/ogre,largerussiangames/ogre,jhu-lcsr-forks/ogre,nezticle/ogre,nezticle/ogre,nezticle/ogre,nezticle/ogre