Merge pull request #3461 from Segrain/dev-freeze

Dev-freeze bugfixes.
Made the vox shuttle bridge free of oxygen.
Added nitrogen tanks for pressure cannons.
Fixing a custom item.
Added a knife harness/duelling knives.
Made dispensers unwrenchable.
Added some appearance data back to monkey variants.
Fixed the order of update/return statements for dispenser.
Merge pull request #3463 from Zuhayr/feature

Vox shuttle tweaks, some other things.
Moving box out of wrong slot.
Vox flavor text.
Vox suit sensors.