TODO:
 * reimplement the config.py / .config mechanism.  i'd like for many commands
   to share very similar argument or argument sets, as well as have some
   common config options.  I'm not sure the best way to do this.

 * pull out global configuration information from various files, like rt_db,
   mailer.py,  auth.py, and any others.  Create a single configuration file
   from which all others pull.

 * Find a better location to place and pull the PLK files currently in the pdb
   directory.  Ultimately, these should be stored in a real DB.  Until then,
   they should sit in a location that is accessible from the www scripts,
   backend scripts, and user utilities.

 * add a third package for user tools that will interact with the Monitor
   service.  Mostly, I'm guessing this would be queries for the live status
   nodes and a more reliable 'reboot' and 'reinstall' mechanism than currently
   availble with PLC.