Impliments Ghom review, reverts blood list back to component

code/game/objects/items/clown_items.dm

@@ -88,7 +88,7 @@
 			var/obj/effect/decal/cleanable/C = locate() in target
 			qdel(C)
 			target.remove_atom_colour(WASHABLE_COLOUR_PRIORITY)
-			target.clean_blood()
+			SEND_SIGNAL(target, COMSIG_COMPONENT_CLEAN_ACT, CLEAN_MEDIUM)
 			target.wash_cream()
 	return
 

code/game/objects/items/mop.dm

@@ -26,7 +26,7 @@
 
 /obj/item/mop/proc/clean(turf/A)
 	if(reagents.has_reagent("water", 1) || reagents.has_reagent("holywater", 1) || reagents.has_reagent("vodka", 1) || reagents.has_reagent("cleaner", 1))
-		A.clean_blood()
+		SEND_SIGNAL(A, COMSIG_COMPONENT_CLEAN_ACT, CLEAN_MEDIUM)
 		for(var/obj/effect/O in A)
 			if(is_cleanable(O))
 				qdel(O)

code/game/objects/items/stacks/stack.dm

@@ -388,10 +388,10 @@
 	else
 		. = ..()
 
-/obj/item/stack/proc/copy_evidences(obj/item/stack/from as obj)
-	blood_DNA = from.blood_DNA
-	fingerprints  = from.fingerprints
-	fingerprintshidden  = from.fingerprintshidden
+/obj/item/stack/proc/copy_evidences(obj/item/stack/from)
+	add_blood(from.return_blood_DNA())
+	add_fingerprint_list(from.return_fingerprints())
+	add_hiddenprint_list(from.return_hiddenprints())
 	fingerprintslast  = from.fingerprintslast
 	//TODO bloody overlay
 
@@ -436,4 +436,4 @@
 
 /datum/stack_recipe_list/New(title, recipes)
 	src.title = title
-	src.recipes = recipes
+	src.recipes = recipes

code/game/objects/items/twohanded.dm

@@ -346,7 +346,7 @@
 		icon_state = "dualsaber[item_color][wielded]"
 	else
 		icon_state = "dualsaber0"
-	clean_blood()//blood overlays get weird otherwise, because the sprite changes.
+	SEND_SIGNAL(src, COMSIG_COMPONENT_CLEAN_ACT, CLEAN_STRENGTH_BLOOD)
 
 /obj/item/twohanded/dualsaber/attack(mob/target, mob/living/carbon/human/user)
 	if(user.has_dna())
@@ -881,4 +881,4 @@
 		var/client/C = user.client
 		C.change_view(CONFIG_GET(string/default_view))
 		user.client.pixel_x = 0
-		user.client.pixel_y = 0
+		user.client.pixel_y = 0