I'm working on a DRb-based, Internet-enabled ruby-processing server, intended to be run with "rp5 live" (so you can live code with others).  My current problem is that I can't seem to execute code to disconnect from the server when the Processing::App subclass quits.  I've tried overriding stop() and close(); neither seems to get called.  I've even tried key_pressed(event) and disconnecting if event.key_code == 27 (Escape), but that then seems to prevent Escape from closing the window (as it normally does).