* Sideports a couple of init unit tests from Neb.
* Trying to unfuck initialize logic.
* Removing del()s.
* Adjusting return values to Initialize().
* Moving some dangerous object logic from obj onto the two types that use it.
* Rolling back some init changes and commenting out initialized atom unit test.
* this comment formatting is a minor war crime
* Removed sleep() from signaler circuit Initialize().
* Additional Init fixes post-rebase.
* Uncomments subsystem test since that's passing.
All living mobs will now have a check run every 30 seconds or so to replay the current ambience of the area they're in, if they've not had it played in the last minute. Said check is a 35% chance of playing the ambience. Good for if you're standing around in one area.
Computers + turrets got new sounds, turrets have a deploy, retract, and rotate sound. Arcade machines now play sound effects depending on what step you're on and what you're doing.
Replaced maintenance ambience with different ambience from Paradise/Aurora, and moved our maintenance to foreboding, and moved old foreboding to it's own folder.
This adds throw_alert() and /obj/screen/alert, a system that allows you to do custom hud alerts for any variety of things from "You're too cold!" to mecha status indicators for the pilot.
There's quite a few things that actually got replaced; the
fire/oxy/tox/co2 alerts are all now just alerts, as is nutrition. There's also a number of new alerts, such as blindness, highness, legcuffed, buckled, handcuffed, and probably some more I missed; read code/_onclick/hud/alert.dm and see for yourself!
Additionally, a number of tweaks have been done to resisting code, to make it so that there's an indicator when you're buckled or handcuffed, and can just click the alert to start resisting. This includes a refactor that combines the logic for lockers, holders all into one proc, called container_resist().
Also, the health and internals indicator got moved down one tile each. Needed room for the alerts. If we add the oxygen tank action buttons from /tg/ and remove the internals indicator, the health indicator can go back where it was originally.
Alerts, pictured in the top right.

- Existing consoles remain for now, only refactored to use a shared nano_module. Included by default on engineering consoles, downloadable by anyone with basic engineering access.
- Tidies up the UI a bit, prevents manual toggling of valves when they are in Auto mode (as it would immediately toggle back)
- Removed the old processController process and refactored it into a subsystem
- Updated references from supply-controller to SSsupply
- Changed from 1.5 points per 30 seconds to 1 point per 20 seconds. Same rate of 3 per min, but avoids fractional points.