Backed out changeset: 048942890eca (SceneManager should not destroy wellknown shared materials, that could still be in use by another scene manager.)
Backed out changeset: 048942890eca (SceneManager should not destroy wellknown shared materials, that could still be in use by another scene manager.)

paroj/ogre,paroj/ogre,paroj/ogre,OGRECave/ogre,OGRECave/ogre,paroj/ogre,OGRECave/ogre,paroj/ogre,OGRECave/ogre,OGRECave/ogre