Patch 2118055: TextureDef less operator() should be const
Patch 2118055: TextureDef less operator() should be const

paroj/ogre,OGRECave/ogre,OGRECave/ogre,OGRECave/ogre,OGRECave/ogre,paroj/ogre,vbudovski/ogre,OGRECave/ogre,paroj/ogre,RealityFactory/ogre,RealityFactory/ogre,vbudovski/ogre,RealityFactory/ogre,paroj/ogre,vbudovski/ogre,paroj/ogre,vbudovski/ogre,RealityFactory/ogre,RealityFactory/ogre,vbudovski/ogre