-When checking if there is enough ammo to fire a weapon, take the maximum of that weapon's minammo and ammouse values as sometimes DeHackEd authors will alter ammouse but not minammo, allowing the weapon to fire with insufficent ammo (bug 971).

git-svn-id: http://odamex.net/svn/root/trunk@4251 b0bcef46-2027-0410-bd56-ab726e9a1d04