Version 2.2.x:
--------------

To do:

- Uniformize functions comments (I really liked your way of commenting
  functions Robert so I will try to do that for remaining sources)
- Cleanup Mailbox::parse()
- Cleanup Options::update_gui()
- Fix bugs ;-)

Version 2.x.0:
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* Summary instead of immediate notification (see RFE on sourceforge)
* Make error handling when reading/parsing mail more consistent. At the moment
  sometimes no warning is printed, always a warning is printed or a warning is
  printed in debug mode. Perhabs (new option?) print the error message in the
  tooltip? (this could be done by giving the message as parameters to the
  exceptions)
* Shall some options removed from the GUI, added to the GUI (e.g. imap idling)
* Tooltips: Write where pango-markup can be used, explain standard port number
* Only one FAM call for all local mailboxes. Still parse mails in multiple
  threads
* Substitute gtk_window_present() in ui-popup.cc by something that isn't
  system dependent and does not steal the keyboard focus
* HTML mails?
* Bug in Mailbox::mark_messages_as_read
* Cleanup of src/gnubiff.cc
* See RFEs on sourceforge