I think I fixed everything it is possible to stuff a light source into.

Conflicts:
	code/game/dna/dna_modifier.dm
	code/game/machinery/Sleeper.dm
	code/game/objects/structures/transit_tubes.dm
	code/modules/reagents/Chemistry-Machinery.dm
	code/modules/recycling/disposal.dm

code/modules/reagents/Chemistry-Machinery.dm

@@ -208,7 +208,7 @@
 	if(istype(B, /obj/item/weapon/reagent_containers/glass) || istype(B,/obj/item/weapon/reagent_containers/food))
 		src.beaker =  B
 		user.drop_item()
-		B.loc = src
+		B.setloc(src)
 		user << "You set [B] on the machine."
 		nanomanager.update_uis(src) // update all UIs attached to src
 		icon_state = "[icon_state]2"
@@ -325,7 +325,7 @@
 			return
 		src.beaker = B
 		user.drop_item()
-		B.loc = src
+		B.setloc(src)
 		user << "You add the beaker to the machine!"
 		src.updateUsrDialog()
 		icon_state = "mixer1"
@@ -338,7 +338,7 @@
 
 		src.loaded_pill_bottle = B
 		user.drop_item()
-		B.loc = src
+		B.setloc(src)
 		user << "You add the pill bottle into the dispenser slot!"
 		src.updateUsrDialog()
 	return
@@ -354,7 +354,7 @@
 
 	if (href_list["ejectp"])
 		if(loaded_pill_bottle)
-			loaded_pill_bottle.loc = src.loc
+			loaded_pill_bottle.setloc(src.loc)
 			loaded_pill_bottle = null
 	else if(href_list["close"])
 		usr << browse(null, "window=chemmaster")
@@ -966,7 +966,7 @@
 		else
 			src.beaker =  O
 			user.drop_item()
-			O.loc = src
+			O.setloc(src)
 			update_icon()
 			src.updateUsrDialog()
 			return 0
@@ -980,7 +980,7 @@
 
 		for (var/obj/item/weapon/reagent_containers/food/snacks/grown/G in O.contents)
 			O.contents -= G
-			G.loc = src
+			G.setloc(src)
 			holdingitems += G
 			if(holdingitems && holdingitems.len >= limit) //Sanity checking so the blender doesn't overfill
 				user << "You fill the All-In-One grinder to the brim."
@@ -1003,7 +1003,7 @@
 		return 1
 
 	user.before_take_item(O)
-	O.loc = src
+	O.setloc(src)
 	holdingitems += O
 	src.updateUsrDialog()
 	return 0
@@ -1086,7 +1086,7 @@
 		return
 	if (!beaker)
 		return
-	beaker.loc = src.loc
+	beaker.setloc(src.loc)
 	beaker = null
 	update_icon()
 
@@ -1098,7 +1098,7 @@
 		return
 
 	for(var/obj/item/O in holdingitems)
-		O.loc = src.loc
+		O.setloc(src.loc)
 		holdingitems -= O
 	holdingitems = list()