Infrastructure

Basic infrastructure for profession-locked traits.
Traits in progress

Skater is implemented but not granted.  Computer ones are currently
looking for a place to hook into the code.  Committing to change gears
and pass out better cold-weather gear.
Prototype works now.  Roller Derby and Hockey players are more effective when skating in combat.
Police WIP

I'm not sure why it leaves a corpse, but the code to cancel the copbots
appears to be more or less working.
Rewrite MD description

Probably still too long, but better than it was.
Fix out-of-bounds access when creating a nether monster from field fd_fatigue

rng( a, b ) can return either a or b or any number between, so it could return 9, which is not a valid index in the array.
Vehicle parts pack. Attempt 3.

1. Metal wheel + recipe.
2. Chitin vehicle armor + recipe.
3. Bone vehicle armor + recipe.
4. Add tiny storage space to doors. (Typical car doors usually contain
space in which you can put some stuff.)
5. Wooden seat.
6. Wooden spike.
7. Wooden door.
8. Wooden roof.
Replace check for various item ids with generic check:

Check for ammo being plutonium (either normal ammo or through atomic battery mod).
Remove reference to active UPS items / bionics.

Instead only check for the inactive ones and use charges from the inactive one when requested.
Use the item id "UPS" for any kind of UPS, or use only the *_off item type for checks for specific kind of UPS item.
Make optical cloak / power armor able to be active.

The item is set to active, but does not change its item type.
The code checks for an active and worn item of the required type.

During player::process_active_items the UPS charges for those items are consumed, or if not available the items are made inactive.

The items have simple iuse function (actor based) which is used to activate / deactivate it.

Replace the check has_active_UPS with has_charges("UPS",1) to check for the availability of at least one charges (from any source: UPS, adv. UPS, or bionic).
Save compatibility for active UPS items.
Spelling fix

spotted by veri745
Add documentation for iuse ups_based_armor
Extract messages from iuse ups_based_armor for translation.
Winterized Army Gear for military professions.

Because the loaded gun is the LAST thing they give to soldiers. If we're
really going to have the game start in a snowstorm, then US Military
service members of all people shouldn't be scrambling for warmer
civilian clothes.

Adds winter_jacket_army, winter_pants_army, and winter_gloves_army to
armor.json and item_groups.json, as well as the three current military
professions in professions.json. Also gives all three military
professions balaclavas, gives recruits army helmets and helmet liners,
and bio soldiers berets.
Merge branch 'ops' of https://github.com/BevapDin/Cataclysm-DDA into merge
Increase the price of winterized army gear by 25%.

At the request of KA101.
a peephole shouldn't be a factor on whether or not you can unlock a door
Change color.
Made bone armor kit easier to craft.