-Don't force enemy or team colors when spectating since spectators aren't really on a team.

git-svn-id: http://odamex.net/svn/root/trunk@4067 b0bcef46-2027-0410-bd56-ab726e9a1d04
-Change allocation and freeing of the temporary buffer for the burn screen wipe to use new/delete instead of Z_Malloc/Z_Free since D_DoomWadReboot reinitializes the Zone memory system when changing WADs, crashing if the WAD changes during a screen wipe.

git-svn-id: http://odamex.net/svn/root/trunk@4068 b0bcef46-2027-0410-bd56-ab726e9a1d04