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/modules/detectivework/scanning_console.dm

@@ -277,7 +277,7 @@
 			if(istype(I, /obj/item/weapon/f_card))
 				if(process_card(I))
 					M.drop_item()
-					del(I)
+					qdel(I)
 			else
 				usr << "<spawn class='warning'>Invalid fingerprint card, rejected.</span>"
 		if("print")