-Add a version of R_PointInSubsector for the physics code (P_PointInSubsector) for compatibility purposes.
-Fixes issues walking across bridge-things on zdctf map04.

git-svn-id: http://odamex.net/svn/root/branches/persdiv@3688 b0bcef46-2027-0410-bd56-ab726e9a1d04
Merge remote-tracking branch 'persdiv' into 32bpp-persdiv