Synch with Gnus trunk:
2009-06-01 Katsumi Yamaoka <yamaoka@jpl.org>
* gnus-art.el (gnus-mime-delete-part): Specify gnus-decoded as charset
to deleted part.
2009-05-30 David Engster <dengste@eml.cc>
* nnmairix.el: Remove old documentation in the commentary block.
(nnmairix-request-group): Do not update active file for nnml back ends.
(nnmairix-retrieve-headers): Set gnus-nov-is-evil to t for nnimap back
end so that overview files are ignored.
(nnmairix-update-groups): Make updating the groups more robust by using
marks.
(nnmairix-determine-original-group-from-path): Circumvent mairix bug
with dollar characters in message-id.