#  Preference Name              Type            Description
#  ---------------              ----            -----------
#  main:
#  preferences.version          String          Preferences version
#  optin.update.notification    True/False      Check for updatea allowed?
#  optin.usage.reporting        True/False      Usage reporting allowed?
#  image_list                   String          List of known IPS images
#                                               separated by \n
#  _last_active_image           String          Private: Last open image in the
GUI
#
#  network:
#  proxy.required               True/False      A Proxy is required
#  proxy.host                   String          Host name of proxy
#  proxy.port                   Int             Port number of proxy
#  proxy.no_proxy_list          String          Hosts/IPs/Domains that do
#                                               not require a proxy
#
#  notifier:
#  check_frequency              never/daily/weekly/monthly
#                                               Establishes how often we
#                                               check for new updates
#  display_seconds                              When updates are available
#                                               indicates how long to display
#                                               the notification balloon.
#                               -1              Until user dismisses
#                                0              Don't display at all
#                               >0              # of seconds to display
#  _last_update_check_time      time            Private: last time an
#                                               update check was performed
#  _last_update_check_type      frequency       Private: The update
#                                               frequency that was in
#                                               affect during the last check.