tweaked shutdown of sql to not make sql unusable after 'disconnect' on a listen server, fixed a couple of mem leaks.
audio no longer starts up twice in windows.
removed specular permutation. its either globally active or globally inactive.
Use oblique near-plane clipping instead of a clipplane, fixing our rtlighting+water warping.
git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@4156 fc73d0e0-1445-4013-8a0c-d673dee63da5
