Minor cleanup, added descriptions to playpen tests.
Minor cleanup, added descriptions to playpen tests.

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