- history of module metrics and authors average.
  (download all the currently available versions of a module from CPAN
  (or even those from backpan), calculate the metric on each one of them
  create nice graphs.

- Add opt-in e-mail notification when the kwalitee of a new releases is
  either < 60% or is worse than the previous value.
  (what to do when more metrics are added?)

- generate sqlite dump of DB