Bugfixes

Fixes #685 (Can't debrain with anesthetic due to breath mask)
- code/modules/clothing/masks/breath.dm

Fixes #1796 (Traitor borgs slaved to traitor AIs don't work properly)
- code/modules/mob/living/silicon/robot/robot.dm
- code/modules/mob/mob_helpers.dm
- code/game/objects/items/robot/robot_parts.dm
- code/game/machinery/computer/robot.dm
- code/datums/wires/robot.dm

Fixes #2722 (Shoving a TTV in something will let it survive it's own explosion)
- code/game/objects/items/weapons/tanks/tanks.dm : 214..217

Fixes #2977 (Tachyon detector doesn't show true size)
- code/game/objects/items/weapons/tanks/tanks.dm : 208

Fixes #3129 (Cannot cut wire over space tile)
- code/game/turfs/space/space.dm

Possibly does something about #1836 - the crash seems similar to the one I kept getting because of asteroid artifact rooms being generated every MC restart
- code/controllers/failsafe.dm
- code/controllers/master_controller.dm
- code/game/gamemodes/gameticker.dm : 117..119

Possibly does something about #3162 - if the problem was the mind = null runtime I encountered
- code/game/gamemodes/gameticker.dm : 343..344