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/detectivework/evidence.dm

@@ -47,15 +47,12 @@
 
 	icon_state = "evidence"
 
-	var/xx = I.pixel_x	//save the offset of the item
-	var/yy = I.pixel_y
-	I.pixel_x = 0		//then remove it so it'll stay within the evidence bag
-	I.pixel_y = 0
-	var/image/img = image("icon"=I, "layer"=FLOAT_LAYER)	//take a snapshot. (necessary to stop the underlays appearing under our inventory-HUD slots ~Carn
-	img.plane = FLOAT_PLANE
-	I.pixel_x = xx		//and then return it
-	I.pixel_y = yy
-	add_overlay(img)
+	var/mutable_appearance/in_evidence = new(I)
+	in_evidence.plane = FLOAT_PLANE
+	in_evidence.layer = FLOAT_LAYER
+	in_evidence.pixel_x = 0
+	in_evidence.pixel_y = 0
+	add_overlay(in_evidence)
 	add_overlay("evidence")	//should look nicer for transparent stuff. not really that important, but hey.
 
 	desc = "An evidence bag containing [I]. [I.desc]"