There is a new option for 'shiproom light', namely 'absorb' - this should have
the pretty obvious effects.

Also, I changed the 'outdoors' level of a room to be limited by the outdoors
rating of the room that the ship is in. For example, if you are sailing inside
a cave, you should no longer be able to look and see the sun above you.

Per usual, dock/summon for the new code to take effect.
Melemkor

P.S. outdoors level gets checked in some unusual places; let me know if the
new settings cause something to break, or look weird.