0.07 - 2024-10-18:
  - correctly set $VERSION in Mirror.pm so the user agent string is valid.
  - canonicalise URL when generating filename.

0.06 - 2024-10-18:
  - use LWP::Online to skip tests when running without connectivity.

0.05 - 2024-07-05:
  - add the mirrored() and stale() functions.

0.04 - 2024-06-03:
  - add this file.
  - add filename().
