Merge branch 'master' of https://github.com/VOREStation/Polaris into aro-sync-05-25-2018

# Conflicts:
#	code/__defines/misc.dm
#	code/controllers/master_controller.dm
#	code/game/machinery/computer3/computers/card.dm
#	code/game/objects/items/devices/communicator/UI.dm
#	code/game/objects/items/stacks/medical.dm
#	code/game/objects/structures/signs.dm
#	code/modules/admin/admin_verbs.dm
#	code/modules/client/client defines.dm
#	code/modules/client/client procs.dm
#	code/modules/clothing/clothing.dm
#	code/modules/clothing/under/accessories/holster.dm
#	code/modules/events/radiation_storm.dm
#	code/modules/mining/machine_processing.dm
#	code/modules/mob/living/carbon/human/species/station/prometheans.dm
#	code/modules/mob/living/living.dm
#	code/modules/mob/living/simple_animal/animals/bear.dm
#	code/modules/mob/living/simple_animal/animals/cat.dm
#	code/modules/mob/living/simple_animal/animals/parrot.dm
#	code/modules/mob/mob.dm
#	code/modules/reagents/Chemistry-Reagents/Chemistry-Reagents-Core.dm
#	code/modules/reagents/Chemistry-Reagents/Chemistry-Reagents-Food-Drinks.dm
#	code/modules/reagents/Chemistry-Reagents/Chemistry-Reagents-Medicine.dm
#	code/modules/reagents/reagent_dispenser.dm
#	config/example/config.txt
#	html/changelogs/.all_changelog.yml
#	interface/skin.dmf
#	maps/southern_cross/southern_cross-1.dmm
#	vorestation.dme

code/modules/security levels/keycard authentication.dm

@@ -132,7 +132,7 @@
 
 /obj/machinery/keycard_auth/proc/broadcast_request()
 	icon_state = "auth_on"
-	for(var/obj/machinery/keycard_auth/KA in world)
+	for(var/obj/machinery/keycard_auth/KA in machines)
 		if(KA == src) continue
 		KA.reset()
 		spawn()