Merge pull request #2641 from SkyMarshal/master

Commit for Rowtree
Merge pull request #2644 from SkyMarshal/master

ZAS fixes: #2632 #2630 #1865
Version 11 of RowtreeStation.dmm
Mixing napalm is incredibly broken with ZAS / not found on our wiki because it's a "secret recipe" so I figure let's just comment it out.
Merge pull request #2648 from Asanadas/master

Misc: Rowtreestation v11, commenting out Napalm making.
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.