Log Message:
Update to 2.2.9: (I commit it on the freeze because it contains
fixes for GTK+ 2.10)

2.2.9 changes:

* The crash that occurred if the summary was sorted by a key
  which doesn't have visible column was fixed.
* The URI of the about dialog was updated.

2.2.8 changes:

* The bug that possibly lost messages when there was no disk space
  has been fixed, so please upgrade if possible.
* The PLAIN authentication method for IMAP4 was supported.
* The verification of encrypted and signed messages with combined
  method was supported.
* Oniguruma regex library can be used instead of system's regex API.
* The LDIF import of the addressbook was improved.
* Full PGP signature information is displayed on the main text view.
* All trailing spaces are removed when signing with PGP/MIME instead
  of using quoted-printable to improve compatibility with other MUAs.
* A warning is displayed before sending when Bcc is specified at PGP
  encryption.
* The bug that possibly lost relatively small messages on receiving
  when there was no disk space was fixed.
* The behavior of manual junk filtering was fixed.
* UTF-8 text can be inserted correctly in the compose window.
* The error messages of the failure of displaying message body was
  improved.
* Some workarounds for GTK+ 2.10 were made.
* Minor UI fixes were made.
* Other minor bugs were fixed.