added abductor airlocks from /tg/
station2 airlocks have a solid version, added external maintenance airlocks
added airlocks to RCD
survival pod airlocks have a solid version
door assemblies have examine hints, give more feedback, use overlays, mineral assemblies can have glass installed, use deconstruct() proc
multi tile airlocks have a solid version
moved airlock-specific procs to airlock_types.dm
airlocks use overlays now
airlocks use deconstruct() proc
map edits done to ensure nothing changes
some old airlock icons kept in due to use as /door/unpowered by away missions
airlocks open faster, delays between frames of icon states halved
added isshade() and isconstruct() helpers
cult airlocks will show their overlay
fixes plasteel material amount
uraniummeltdown
9312f1fb7d