Bugfix: Starting characters wear their clothing again.
Use pos instead of invlet when tracking items going into a vehicle.
Bugfix: Mutations remove worn clothes properly.
iuse bugfixes: knives in boots, playing video games, reloading turrets.
Bugfix fixes for drinking from your hands/condensors when invlets are
full.
Don't drop crafted items when at 75 item limit.  Migrate a few ammo
usages (still doesn't support reloading items w/o invlets).
Allow loading ammo items without invlets.
Bugfix power armor.  Pretty sure this one was broken before my change, but
this prevents taking it off when other components are on (note nothing
prevents dropping it, but that was already pre-existing).
Fixed ammoless reloading