Turf initialization tweaking.

Removes the need for a spawn() in New().

code/game/turfs/initialization/init.dm

@@ -6,6 +6,7 @@
 
 /area/initialize()
 	..()
-	if(turf_initializer)
 	for(var/turf/simulated/T in src)
+		T.initialize()
+		if(turf_initializer)
 			turf_initializer.initialize(T)

code/game/turfs/simulated.dm

@@ -20,6 +20,9 @@
 		holy = 1
 	levelupdate()
 
+/turf/simulated/proc/initialize()
+	return
+
 /turf/simulated/proc/AddTracks(var/typepath,var/bloodDNA,var/comingdir,var/goingdir,var/bloodcolor="#A10808")
 	var/obj/effect/decal/cleanable/blood/tracks/tracks = locate(typepath) in src
 	if(!tracks)

code/modules/multiz/turf.dm

@@ -11,9 +11,8 @@
 	var/list/underlay_references
 	var/global/overlay_map = list()
 
-/turf/simulated/open/New()
-	. = ..()
-	spawn(1)
+/turf/simulated/open/initialize()
+	..()
 	below = GetBelow(src)
 	ASSERT(HasBelow(z))