Merge branch 'master' of https://github.com/PolarisSS13/Polaris into polaris-sync-2018-01-19

# Conflicts:
#	code/_onclick/hud/hud.dm
#	code/modules/clothing/glasses/glasses.dm
#	code/modules/mob/living/carbon/human/update_icons.dm
#	maps/southern_cross/southern_cross-1.dmm
#	maps/southern_cross/southern_cross-3.dmm
#	maps/southern_cross/southern_cross-6.dmm
#	vorestation.dme

code/controllers/subsystems/orbits.dm

@@ -0,0 +1,44 @@
+SUBSYSTEM_DEF(orbit)
+	name = "Orbits"
+	priority = 8 // FIRE_PRIORITY_ORBIT
+	wait = 2
+	flags = SS_NO_INIT|SS_TICKER
+
+	var/list/currentrun = list()
+	var/list/processing = list()
+
+/datum/controller/subsystem/orbit/stat_entry()
+	..("P:[processing.len]")
+
+
+/datum/controller/subsystem/orbit/fire(resumed = 0)
+	if (!resumed)
+		src.currentrun = processing.Copy()
+
+	//cache for sanic speed (lists are references anyways)
+	var/list/currentrun = src.currentrun
+
+	while (currentrun.len)
+		var/datum/orbit/O = currentrun[currentrun.len]
+		currentrun.len--
+		if (!O)
+			processing -= O
+			if (MC_TICK_CHECK)
+				return
+			continue
+		if (!O.orbiter)
+			qdel(O)
+			if (MC_TICK_CHECK)
+				return
+			continue
+		if (O.lastprocess >= world.time) //we already checked recently
+			if (MC_TICK_CHECK)
+				return
+			continue
+		var/targetloc = get_turf(O.orbiting)
+		if (targetloc != O.lastloc || O.orbiter.loc != targetloc)
+			O.Check(targetloc)
+		if (MC_TICK_CHECK)
+			return
+
+