damage creatures & items with closing palisade gates
move stuff into its own function
make function name match open_gate function name
Style game::open() and game::close().
Grr kill tabs.
Shove a limited number of small items out of the way automatically when closing a door.
Held radioactive items only irradiate player, not map square
Amended item flags and added radiation level from items to geiger counter iuse
Added descriptions for radioactive items
Storage & suits
Head-handling

Books up the Headgear and makes the basic filter & gas masks tougher to
craft.  (They now require Charcoal to help the filter, as well as
another point of Tailoring and a point of Fabrication.)
Survivor mask reshuffle

Per IRC discussion with Rivet, all survivor masks are now made with a
fabrication roll and use Tailoring for a support skill.

Standard masks are still Tailoring, though the XL gas mask now needs a
point of fabrication to expand an existing mask.
- delete 'genderswap' window;
- one more border_color instead of lt_gray
upped radiation damage
insignificant stuff for flexibility
0 -> NULL, remove unused function declaration, make forced_gate_closing private
fix #5029 - Item dropping weirdness.
display a space instead of '\0' (might get set in inventory::assign_empty_invlet)
fix #5029 again - this time for game::compare
display profession in player info screen