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/client/client procs.dm

@@ -33,7 +33,7 @@
 	if( findtext(href,"<script",1,0) )
 		world.log << "Attempted use of scripts within a topic call, by [src]"
 		message_admins("Attempted use of scripts within a topic call, by [src]")
-		//del(usr)
+		//qdel(usr)
 		return
 
 	//Admin PM
@@ -112,7 +112,7 @@
 
 	if(!config.guests_allowed && IsGuestKey(key))
 		alert(src,"This server doesn't allow guest accounts to play. Please go to http://www.byond.com/ and register for a key.","Guest","OK")
-		del(src)
+		qdel(src)
 		return
 
 	// Change the way they should download resources.