Replaces /image with /mutable_appearance (#556)

* Replaces /image with /mutable_appearance, where appropriate

* Update miscellaneous.dm

* Delete miscellaneous.dm.rej

* Delete pet.dm.rej

* Update pet.dm

* Update species.dm

* Update miscellaneous.dm

* Update species.dm

* Update miscellaneous.dm

* Delete species.dm.rej

* Update species.dm

pretty sure I got all the indentation correct THIS time, ffs

* Update species.dm

* Update species.dm

fucking tabs man, fucking tabs.

code/game/gamemodes/blob/blobs/node.dm

@@ -21,12 +21,11 @@
 /obj/structure/blob/node/update_icon()
 	cut_overlays()
 	color = null
-	var/image/I = new('icons/mob/blob.dmi', "blob")
+	var/mutable_appearance/blob_overlay = mutable_appearance('icons/mob/blob.dmi', "blob")
 	if(overmind)
-		I.color = overmind.blob_reagent_datum.color
-	add_overlay(I)
-	var/image/C = new('icons/mob/blob.dmi', "blob_node_overlay")
-	add_overlay(C)
+		blob_overlay.color = overmind.blob_reagent_datum.color
+	add_overlay(blob_overlay)
+	add_overlay(mutable_appearance('icons/mob/blob.dmi', "blob_node_overlay"))
 
 /obj/structure/blob/node/Destroy()
 	GLOB.blob_nodes -= src