split out RecursiveHullCheck and related code into collision.c (shared by client and server, doesn't care what an entity is), and cl_collision.c (CL_TraceLine and related code), this cleans up a lot of messy RecursiveHullCheck calls, replacing them with Collision_ClipTrace calls
also removed some commented out code
and fixed an epsilon glitch in RecursiveHullCheck which was mostly visible when shooting a gun along a wall at angles nearly parallel with the wall
git-svn-id: svn://svn.icculus.org/twilight/trunk/darkplaces@1861
d7cf8633-e32d-0410-b094-
e92efae38249