- Add upwards dependencies (possibly by using two radiobuttons on each
  dependency tab to switch between upwards and downwards)
- DCOP interface
- Update the INDEX file via portsdb -U from within Barry; this requires a
  mechanism to execute root commands - kdesu is supposed to do that, but it's
  totally broken here :-(
- Generate a graph generated via GraphViz, representing the dependancies of one
  (all?) packages.
