It doesnt use the backgrounds anymore but its still an improvement.
Currently it fogs to a brighter colour than it should because of Bob specular code.
I will fix this after discussing it with Bob.
Also tided up some D3D stuff, a cmdline variable name and changed a small bit of
the htl code to use the existing D3D engine instead of work around it.
And added extra information in version number on bottom left of frontend screen.