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/mecha/working/ripley.dm

@@ -48,9 +48,9 @@
 	if (hides)
 		cut_overlays()
 		if(hides < 3)
-			add_overlay(image("icon" = "mecha.dmi", "icon_state" = occupant ? "ripley-g" : "ripley-g-open"))
+			add_overlay(occupant ? "ripley-g" : "ripley-g-open")
 		else
-			add_overlay(image("icon" = "mecha.dmi", "icon_state" = occupant ? "ripley-g-full" : "ripley-g-full-open"))
+			add_overlay(occupant ? "ripley-g-full" : "ripley-g-full-open")
 
 
 /obj/mecha/working/ripley/firefighter