mm-decode.el (mm-save-part): Handle invalid read-file-name results
mml.el (mml-insert-part): Insert closing tag
gnus-int.el (gnus-backend-trace): Honour gnus-backend-trace
auth-source.el (auth-source-format-prompt): Don't get confused by any "\\" in replacement text (Bug#13637)
lisp/ChangeLog (2012-02-19, 2012-01-27): Author fix
Merge changes made in Gnus trunk

2013-02-13  Glenn Morris  <rgm@gnu.org>
* message.texi (News Headers): Don't mention yow any more.

2013-02-13  Juri Linkov  <juri@jurta.org>
* gnus-art.el (gnus-article-mode-map):
* gnus-sum.el (gnus-summary-mode-map, gnus-summary-article-map):
  Make S-SPC scroll in the opposite sense to SPC.  (Bug#2145)

2013-02-12  Paul Eggert  <eggert@cs.ucla.edu>
* gnus-group.el (gnus-group-browse-foreign-server):
* gnus-start.el (gnus-check-new-newsgroups):
* nnmail.el (nnmail-expiry-wait-function, nnmail-read-incoming-hook):
* smime.el (smime-crl-check):
* emacs-mime.texi (Charset Translation):
* gnus-faq.texi (FAQ 5 - Composing messages):
* gnus.texi (Group Levels, Exiting the Summary Buffer, Common Variables)
  (Agent and flags, Score File Format, The problem of spam)
  (Gnus Registry Setup, Oort Gnus, Terminology)
  (Optional Back End Functions):
* message.texi (Message Buffers):
* sieve.texi (Managing Sieve):
  In doc, use standard American English style for e.g., etc., i.e.
gnus-util.el (gnus-define-keys): Convert [?\S-\ ] to [(shift space)] for XEmacs
Generalize "animated" images to "multi-frame" images

shr.el (shr-put-image): Only animate images that specify a delay.
  This is consistent with the old image-animated-p behavior.
shr.el (shr-put-image): Use image-multi-frame-p if available
mml2015.el (mml2015-epg-find-usable-key): handle revoked user-id
gnus-faq.texi, gnus.texi: Port documentation to Texinfo 5.0
* gnus-registry.el (gnus-registry-save): Provide class name when
  calling `eieio-persistent-read' to avoid "unsafe call" warning.  Use
  `condition-case' to stay compatible with older EIEIO versions which
  only accept one argument.
Silence byte compiler.

(gnus-registry-read): Wrap call to `eieio-persistent-read' with two
arguments in `with-no-warnings', so that older Emacsen don't complain
during byte compilation.
* gnus-registry.el: Silence XEmacs byte compiler.
* mml2015-el (mml2015-epg-key-image): wrap epg-gpg-program in shell-quote-argument.

Tiny change from Binjo <binjo.cn@gmail.com>
* shr.el: Make all the overlays set the `evaporate' property so that
they're removed properly.
emacs-mime.texi: Switch from Latin-1 to UTF-8
Prefer UTF-8 when the encoding shouldn't matter and changes are small
nndir.el (nndir-request-list): Remove 2nd argument passed to nnml-request-list (Bug#13873)
gnus-faq.texi (FAQ 3-11): Now Gnus supports POP3 UIDL