Fixes#3285. Changes way hearers are found, so it includes pAIs now.
Also adds (R) in front of LOOC messages that are sent by mobs not in view, for admins/mods, since it's quite disorienting.
New define - AGONY. Used as an effect (Like STUN, WEAKN, etc) to cause HALLOSS. Allows use of HALLOSS projectiles without having to worry about them shattering windows/grilles. Future use? Torture tools, pain inducers for interrogation, 'Be Good' modules, Meme, etc.
HALLOSS now regens while standing up (2 per tick), and laying down (Resting, unconscious, paralyzed - 6 per tick). This fixes the 'real damage + HALLOSS = forever crit'.
Sticking a gun in your mouth (Non-stun, damage inducing) and pulling the trigger kills you.
Icon adjustments.
Now each human will have a list of HUD images, that will be refreshed if it's required, say, a medic walking near you with a medHUD will refresh both medical images.
The list, called hud_list, uses seven defines for all the images, defined in the __DEFINES.dm
I also added a check for not rounding the health bar if the pacient it's dead, fixing some issues with showing dead people in critical or with possitive health.
#2632 Fire Issues (Fire doors work, Flamethrower reverted to making a flamethrower liquid fuel subtype, flame grenades now make a puddle of welder fuel that is lit aflame with napalm)
#2630 (The code has been calling (turf).temperature_expose when it was supposed to be hotspot_expose), #1865 (aqain)(Added a check to remove trace gas fuel under a certain point).
Also: added a flashpoint value for plasma, which is the temperature at which it self-ignites (Currently 246C or 519K which is equal to gasoline)
Partial-tile firedoors now default to full-tile firedoors as the part-tile ones were breaking ZAS zones entirely. Possible cause of #2627 and maybe #2451, but those need tested and I did not have time.
