Stuff that needs doing ...

 - Some kind of rudimentary IP based allows for upsd

   - ACLs: on the way in a future version.  Not being added right away to
     let 0.20 get out without any further delays..

 - Actually use the password field for crude security

   - upsmon will actually transmit the password right now, but upsd doesn't
     check to see if it is valid or not.  I'm planning on using the password 
     field for the next item, which lets clients "log in" ...

   - Hooks in with ACLs

 - Have upsd command the UPS to "off" when all clients have checked out,
   or after some timeout, whichever comes first...

   - Local machine shutdown in upsd
   - Send "shutdown with grace time", then shutdown *fast*
   - Hooks in with ACLs too
 
 - upsd needs some smarts to deal with a UPS that disappears from the serial
   port, and other little oddities like that..
