use json to store and load status of convertible vehicles
make Creature_tracker::update_pos handle dead critters, too
fix wrong item id in recipes and wrong vehicle part ids in vehicle
add back support for old format of hp of folding bicycle
don't ask to resume task, just do it
missed a vpflag in code after fixing curtain typo
allow spare magazine to work with flamethrowers and don't erase the container the ammo was in
restack emptied ammo-container
add handling liquid ammo when removing a spare magazine
Change gunmods output. Fix gunmods calculation.
Fix plurality issues

Normalizes the one plural "frames" to standard "frame"
Fixes lone standard frame

Replaces lone standard frame in firetrucks with the new heavy duty frame.
add vehicle facing indicator option
int -> float
switch checks
Removes welding-goggle requirement for disassembly

Since you don't actually weld anything when disassembling, shouldn't
need the goggles at all, I'd imagine.

Fixes vehicle typo as well (wouldn't compile w/o fix, sorry).
Merge pull request #5467 from ave-/veh_curtain_missed_code

missed a vpflag in code after fixing curtain typo
Merge fixes for today.
Merge gunmod fixes.

Conflicts:
	src/player.cpp
Just do it.