Restyle vehicle_parts.json 3/4.
Restyle vehicles.json 3/4.
Restyle materials.json 2/3.
Restyle mutations.json 2/3.
Restyle species.json 2/2.
Fingertip razors.

Passive bionic that adds a small amount of slashing damage to unarmed
attacks.
Protective eye lenses.
Zaweri's new reloading materials.

Appears to add solder, silver, bismuth and tin, for the purpose of using
them (along with gold) to reload casings of ammo. I didn't look too
closely, but did run jsonlint; direct any issues to Zaweri.
Empty commit, to test pull request jsonlint.
Add the new items to the spawn lists.
The new input system currently doesn't work with the existing key re-binding screen, making it currently unsuitable for the main game loop. This workaround prevents the new system handling keyboard input in the main loop,instead only handling mouse input.
Guilt about killing monsters gradually decreases
Add one finale message when the player no longer cares about kills
Code improvements and final touch-ups
Compact guilt amount and duration formula
Add missing break in guilt treshold loop
place fertilizer token on planted seed
Don't translate itype_id.
Merge branch 'json_restyle' into json_tidy

Conflicts:
	data/json/mutations.json
	data/json/vehicle_parts.json
Finish restyling mutations.json.