This commit adds the Nightshift lighting mode from /tg/. From 19:00 to
07:00 in station time, the station will go into a reduced-lighting mode,
with dimmed lights across the station.
In conjunction with this, there is a new configuration option to start
the shift time at a random time other than 12:00, so that players are
more likely to experience a night shift (as opposed to having to have a
7 hour round).
Full changes:
- World Topic() is now standardized to use if("parameter" in topic_list)
instead of an amalgamation of findtext() and if(topic == "parameter").
- Comms password is now verified at the top of world/Topic() and sets a
variable to true if it is present and correct.
- "status" now returns extra information if the comms_password is
provided and correct.
Misc changes:
- Shuttle text has been standardized as a proc on mobile docking ports.
This is used by status/supply displays and mob/Stat() for the -ETA- etc stuff.
