Updates the atom_pool, now datum_pool, to handle any datum object.

Makes the garbage collector similarly robust. Continues the whole Destroy/qdel porting.

code/ATMOSPHERICS/components/unary/heat_exchanger.dm

@@ -86,4 +86,4 @@
 				"\blue You have unfastened \the [src].", \
 				"You hear ratchet.")
 			new /obj/item/pipe(loc, make_from=src)
-			del(src)
+			qdel(src)

code/ATMOSPHERICS/components/unary/unary_base.dm

@@ -28,12 +28,12 @@
 
 		return null
 
-	Del()
+	Destroy()
 		loc = null
 
 		if(node)
 			node.disconnect(src)
-			del(network)
+			qdel(network)
 
 		node = null
 
@@ -84,7 +84,7 @@
 
 	disconnect(obj/machinery/atmospherics/reference)
 		if(reference==node)
-			del(network)
+			qdel(network)
 			node = null
 
 		update_icon()

code/ATMOSPHERICS/components/unary/vent_pump.dm

@@ -414,9 +414,9 @@
 			"\blue You have unfastened \the [src].", \
 			"You hear ratchet.")
 		new /obj/item/pipe(loc, make_from=src)
-		del(src)
+		qdel(src)
 
-/obj/machinery/atmospherics/unary/vent_pump/Del()
+/obj/machinery/atmospherics/unary/vent_pump/Destroy()
 	if(initial_loc)
 		initial_loc.air_vent_info -= id_tag
 		initial_loc.air_vent_names -= id_tag

code/ATMOSPHERICS/components/unary/vent_scrubber.dm

@@ -270,7 +270,7 @@
 			"\blue You have unfastened \the [src].", \
 			"You hear ratchet.")
 		new /obj/item/pipe(loc, make_from=src)
-		del(src)
+		qdel(src)
 
 /obj/machinery/atmospherics/unary/vent_scrubber/examine(mob/user)
 	if(..(user, 1))
@@ -278,7 +278,7 @@
 	else
 		user << "You are too far away to read the gauge."
 
-/obj/machinery/atmospherics/unary/vent_scrubber/Del()
+/obj/machinery/atmospherics/unary/vent_scrubber/Destroy()
 	if(initial_loc)
 		initial_loc.air_scrub_info -= id_tag
 		initial_loc.air_scrub_names -= id_tag