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/modules/power/singularity/collector.dm

@@ -141,11 +141,11 @@ GLOBAL_LIST_EMPTY(rad_collectors)
 /obj/machinery/power/rad_collector/proc/update_icons()
 	cut_overlays()
 	if(loaded_tank)
-		add_overlay(image('icons/obj/singularity.dmi', "ptank"))
+		add_overlay("ptank")
 	if(stat & (NOPOWER|BROKEN))
 		return
 	if(active)
-		add_overlay(image('icons/obj/singularity.dmi', "on"))
+		add_overlay("on")
 
 
 /obj/machinery/power/rad_collector/proc/toggle_power()