Unrelated fixes to make eguns and coins show up in the map editor.
Added gun trace evidence. Adds evidence on the shooter, the victim (including hit objects), the gun, and the casings.
Doubled and then some the chance for fibers to be placed on objects and clothing.
Fixes for the new sec vest sprite.
Renamed it to 'armor vest'.
Moved some code around.
Adds fibers from the victim to weapons. Kind of hard to describe.
Plus some tidying in item_attack.dm
Merge branch 'master' of github.com:NTStation/NTstation13 into fibretime

Conflicts:
	icons/obj/gun.dmi
Merge pull request #393 from Petethegoat/fibretime

Merge #393