gl_rsurf.c has been split into gl specific and generic code - the d3d renderer can now draw the world.
ifdef removed the old server-side mvd playback which had been disabled all this time anyway.
git-svn-id: https://svn.code.sf.net/p/fteqw/code/branches/wip@3426 fc73d0e0-1445-4013-8a0c-d673dee63da5
