Minor Initialize fixes (#3138)

changes:

Fixed some missing hints for gibspawners and spiders.
Removed all duplicated lattices/catwalks from the map.

code/game/objects/effects/gibs.dm

@@ -11,7 +11,7 @@
 	var/bloodcolor //Used for gibbed humans.
 
 	Initialize(mapload, list/viruses, datum/dna/MobDNA, fleshcolor, bloodcolor)
-		..()
+		. = ..()
 
 		if(fleshcolor) src.fleshcolor = fleshcolor
 		if(bloodcolor) src.bloodcolor = bloodcolor

code/modules/mob/living/simple_animal/hostile/giant_spider.dm

@@ -66,7 +66,7 @@
 
 /mob/living/simple_animal/hostile/giant_spider/Initialize(mapload, atom/parent)
 	get_light_and_color(parent)
-	..()
+	. = ..()
 
 /mob/living/simple_animal/hostile/giant_spider/AttackingTarget()
 	. = ..()

maps/aurora/aurora-1_centcomm.dmm

@@ -79219,7 +79219,7 @@ lZ
 mW
 aN
 aN
-nv
+lC
 nB
 mA
 mA

maps/aurora/aurora-2_under-station.dmm

@@ -9914,7 +9914,7 @@ a
 a
 a
 a
-d
+e
 e
 e
 e
@@ -10448,7 +10448,7 @@ h
 h
 h
 h
-G
+h
 a
 e
 a

maps/aurora/aurora-7_roof.dmm

@@ -23079,7 +23079,7 @@ aa
 aa
 aa
 dr
-dx
+dr
 dr
 aa
 aa