2009-06-05 sponge

    * BOB now cleans up tunnels, although they can take up to 5 minutes to
      disapear. This is due to the fact that the streaming lib doesn't
      actually remove the connections properly and kill them off when the
      manager is destroyed. I'm not certain if this is a bug, or a feature,
      but it sure is annoying, and you have to wait for the connections to
      time out. What should happen is the streaming lib should cause an IO
      error to the pending read or write.