Misc fixes and tweaks
Created by: unid15
- Fixed chplain's bible being incorrect
- Removed fun by fixing wheelchairs (Fixes #5694 (closed))
- Added an admin-only "multi_people" wheelchair which works just like the old wheelchair (with a bonus of actually stacking people on top of each other)
- The "Dude's mind is too faint..." message no longer shows up if Dude is on the second z-level
- Absolute pathing in gun.dm