Misc tweaks and mime gets a tator item

+Shuttle brig now has straightjackets, prisoner jumpsuit lockers, and looks better.
+RSF wont be put on the table when used on it anymore.
+Mime has silent pistol and .45 ammo as a traitor item now.
+Megaphone is 'louder' (http://bugs.nexisonline.net/issues/162)