nnir.el: Improve marks handling.
nnir.el: Small optimizations. Use 'gnus-group-guess-full-name-from-command-method
gnus-msg.el (gnus-msg-mail): Make it avoid using posting styles corresponding to any existing group (Bug#14166)
nnir.el (nnir-request-set-mark): Make sure we are in the right group.
gnus-msg.el (gnus-msg-mail): Make it avoid using posting styles corresponding to any existing group (Bug#14166)
shr.el: Support <img src="data:...">
lisp/ChangeLog: Fix last change
Merge branch 'master' of https://git.gnus.org/gnus

Conflicts:
	lisp/ChangeLog
Merge branch 'master' of https://git.gnus.org/gnus
* gnus-sum.el (gnus-summary-insert-articles): Force dependencies
  update with newly retrieved headers.
* nnir.el (nnir-close-group): Make sure we are in the right group.
Merge branch 'master' of https://git.gnus.org/gnus
* gnus-msg.el (gnus-inews-insert-gcc): Re-order conditional to work for
	string values of 'gcc-self.
message.el (message-bury): Revert 2013-03-18 change (Bug#14117)
mail-source.el (mail-source-fetch-pop, mail-source-check-pop): Don't set the MAILHOST environment variable permanently (Bug#14271)
mail-source.el (mail-source-fetch-pop, mail-source-check-pop): Fix last change
Merge branch 'master' of https://git.gnus.org/gnus
mail-source.el (mail-source-fetch-pop, mail-source-check-pop): Fix again
sieve-manage: update sieve port number

Signed-off-by: Julien Danjou <julien@danjou.info>
gnus.el (gnus-list-debbugs): Use require rather than autoload (Bug#14262)