Synch with Gnus trunk:

Synch with Gnus trunk:
2009-07-16  Katsumi Yamaoka  <yamaoka@jpl.org>
* nnrss.el (nnrss-request-article): Allow mml-to-mime to generate MIME
article without making inquiry to a user for unknown encoding.

* nnmaildir.el (nnmaildir--group-maxnum, nnmaildir--new-number)
(nnmaildir--scan): Assume i-node and device number that file-attributes
returns might be cons-cell.

2009-07-16  Teodor Zlatanov  <tzz@lifelogs.com>
* auth-source.el: Remove docs now in auth.texi.  Don't use
`gnus-message' for logging.  Add new variables `auth-source-debug' and
`auth-source-hide-passwords' and use them.