fixed bug where non-autosprite transparencies rendered in the same batch as autosprit...

fixed bug where non-autosprite transparencies rendered in the same batch as autosprite transparencies were not rendered (fixes light cones disappearing in q3dm0, among other things), this occurred because the code that handles q3 shaders using "deformvertexes autosprite" changed the array pointers but never changed them back when rendering another q3 shader that does not use deformvertexes
minor cleanup of RSurf_ActiveEntity (now uses RSurf_CleanUp rather than duplicating code)
moved RSurf_CleanUp above RSurf_ActiveEntity

git-svn-id: svn://svn.icculus.org/twilight/trunk/darkplaces@6640 d7cf8633-e32d-0410-b094-e92efae38249