Terrain ray test now working properly; reverted mostly to the old implementation since using the common conversions was getting awkward for this, but fixed a few issues
Terrain ray test now working properly; reverted mostly to the old implementation since using the common conversions was getting awkward for this, but fixed a few issues

--HG--
extra : convert_revision : svn%3A8631bf8a-c64b-0410-883c-f3eb003322f7/trunk%40903

jhu-lcsr-forks/ogre,jhu-lcsr-forks/ogre,vancepym/ogre,largerussiangames/ogre,ruleless/ogre,ehsan/ogre,ruleless/ogre,ruleless/ogre,bhlzlx/ogre,vancepym/ogre,vancepym/ogre,ruleless/ogre,ehsan/ogre,jhu-lcsr-forks/ogre,nezticle/ogre,largerussiangames/ogre,bhlzlx/ogre,nezticle/ogre,largerussiangames/ogre,bhlzlx/ogre,vancepym/ogre,largerussiangames/ogre,nezticle/ogre,ehsan/ogre,bhlzlx/ogre,ehsan/ogre,vancepym/ogre,jhu-lcsr-forks/ogre,jhu-lcsr-forks/ogre,nezticle/ogre,bhlzlx/ogre,ruleless/ogre,bhlzlx/ogre,ehsan/ogre,ruleless/ogre