Fixes, additions, the likes.

- Revamped hide body. (removed hide body action)
- you must now dig a grave first
- then you can hide the body and a grave cross pops up
- Zeds do not create grave crosses
- The player must drag a dead body to suitable terrain in order to bury
them
- Animals can be hidden instantly
- server does not cleanup dead players without a cross nearby
- Fixes to medical actions
- you can no longer drag someone get in a vehicle and teleport them when
you get out
- Server fixes
- removed anti-alt + f4 (caused lag).
- lowered max rain amount
- fixed issue where you could combat log with broken legs
- fixed issue where a player leaving the server too early after death
would delete the body.
- theoretically, now that the server only cleans bodies under certain
conditions bodies shouldn't disappear on combat log.
- Fix issue with tent building aggroing  zeds too far.