Adds flag and gunmod that allows some guns to be fired underwater.

To be fair, even normal guns can still work underwater now, they just
stand a very good chance of misfiring without this new flag.
Fix typo

Thanks for the checkup, Rivet.
Merge branch 'master' of https://github.com/CleverRaven/Cataclysm-DDA into creature-rework
Merge pull request #4893 from BevapDin/add-bio_lockpick

add bio_lockpick as item
Merge branch 'master' into no_maybe_uninitialized

Conflicts:
	src/iuse.cpp
	src/iuse.h
	src/mapgen.cpp
	src/npctalk.cpp
Increases underwater ranged combat penalties fourfold.
Adds an exception via a separate UNDERWATER_GUN flag.

Range is effectively four times longer for unflagged weapons being fired
underwater. Conversely, flagged weapons find the same effect applied to
their shots when used out of water.
And even though the flag is UNDERWATER_GUN, it can be applied to other
ranged weapons as well.
remove unused parameters.
Merge branch 'master' into no_maybe_uninitialized
Integration of new tag.
Merge item listing categories.

Conflicts:
	src/item_factory.cpp
	src/item_factory.h
	src/itype.h
Don't localize names if LOCALIZE=0.
Bugfix: Starting characters wear their clothing again.
Added new categories. Assigned categories to all recipes.
Removed commented code.
Merge bugfixes.
Changed all occourances of "MISC" to "OTHER" simply because it looks better.
Fixed a bug in tab cycling.
Use pos instead of invlet when tracking items going into a vehicle.
Spearguns!

Great underwater, terrible on land.