* Replaced "fire" with SPAWN_HEAT. You will have to use it in conjunction with SPAWN_TOXINS to spawn fire.
* Added flags for HEAT, COLD, TOXINS, OXYGEN, CO2, NITROGEN, N2O, FUEL and AIR.
* Stopped the fuel and n20 option, in spawn_air, from runtiming.
* Added toxins as a spawn_air option.
* Removed all use of the fuel option and replaced it with toxins, since fuel does not work with LINDA anymore.
-Hot air is less lethal
-Fire is more lethal
-Catch on fire when entering a hotspot but fire_stacks given dropped to 0.5 each
-You now light up your environment while on fire
These doors didn't work previously, as the bound width needs to be set properly. Additionally, LINDA was tweaked to properly update in the case of multitile objects such as this door (actually this door is the only such, currently, but if more doors or other multi-tile objects are added, this will help)
Note that until #1206 is merged, this door has a blind spot where you cannot click it because you are not in range of the leftmost tile; old click code only uses the canonical location (loc), meaning the right tile is not counted for range checks.
