Fire update.  Should now burn out after a time, and temperature varies on a number of conditions.  Fixed a runtime, and made fire work in canisters.  Ingame modification of ZAS is now possible again.  Firedoors now remove duplicate firedoors on the same turf.
Napalm can now be made, due to fire changes.
fuel is now a bit less derpy.  Napalm produces volatile fuel, and less of it.  Fire consumes more welding fuel.
Compile fix.
Fix posibrain not turning off if no candidate

The reset proc was checking for the presence of a brainmob, while one
was created in the constructor. It should rather check the presence of a
key
Merge pull request #2654 from Ravensdale/master

Custom item fix
Merge pull request #2652 from SkyMarshal/master

Fire fixes and improvements.  Note: May need fine tuning.
Add check forposibrain without brainmob

This should never happen, but check nonetheless.
Merge pull request #2653 from Jupotter/master

Fix for posibrain not turning off
Fix a wrong null check in posibrain

A wrong nullcheck that prevent posibrain searching for a player
Merge pull request #2656 from Jupotter/master

FIx posibrain unable to be started
Removing the captain spawning in with his space suit armor.
Fixes the bug with Filters allowing insane overpressurization.
Merge pull request #2665 from SkyMarshal/master

Fix for Hawkie: Filters no longer should super-over-pressurize one of the outputs.
Merge pull request #2662 from Asanadas/master

Misc: Removing the captain's space suit armor on-spawn
Activated magboots will now, definitely, prevent airflow based grieving of your personage.  (Included is a possible fix for airflow opening doors by throwing you at them)
Added in code to debug ZAS tile interactions, currently in the unchecked "Debug" file.
The blasted FloodFill proc now works properly, and zones are connecting right (Should finally fix that damn part of medbay not connecting to the hallway)
Plasma can contaminate again.
The master controller and world startup code has been reworked for faster server boots.
Fixed a runtime originating from a Away Mission map trying to create objects of type "null"
Airflow now prevents doors being bumped open.
Plasma settings changed as per Cacophony
Airflow defaults changed as per Cacophony
Plasma now has an effect other than what happens when breathed. (contamination readded)
Washing machines now clean off contamination.
Plasma no longer contaminates backpacks (They cannot be washed)
Increased speed of zone equalization.
Lighting controller and ticker now initialized after world is set up and a player has joined.
Changeloooog~
Merge pull request #2666 from SkyMarshal/master

Loadsafixes.  See description. (Changelog updated retroactively)