- added support for setting the file mtime and the timestamp filename to the

  date in the "Date: " header or in the "From " mbox line. Thanks to Lukas van
  Schagen, Gudleik Rasch and Bill McGonigle for giving me some different
  patches doing this, I mixed it to get the better way I hope;)
  (default: "From ")
- added support for the maildir++ format (append the message size to the filename)
  (default: deactivated)