The user can now have infinitely many Date headers.
This change should be pretty much backwards-compatible, even though
many customisation variables have been removed.
gnus.texi (Customizing Articles): Document the new way of customizing
the date headers(s).
gnus-win.el: Remove dead function gnus-window-configuration-element.
(gnus-all-windows-visible-p): Remove old compatibility code.
(gnus-window-top-edge): Add docstring.
gnus-sum.el (gnus-select-newsgroup): Don't try to alter the active data if the group is unactivated.
mml2015.el (mml2015-epg-sign): Add and use mml2015-sign-with-sender.
(mml2015-epg-encrypt): Use mml2015-sign-with-sender.
gnus-art.el (article-update-date-lapsed): Ensure that point stays at the "same place" even if point is on the line being replaced.
(article-update-date-lapsed): Allow updating both the combined lapsed and the lapsed headers.
(article-update-date-lapsed): Skip past all the X-Sent/Date headers.
(article-make-date-line): Limit the number of segments dynamically to avoid too-long lines.
gnus-art.el (gnus-article-next-page): Change last-line-displayed behaviour.
(article-lapsed-string): Refactor out and allow specifying how many segments you want.
(gnus-article-setup-buffer): Start updating the lapsed header directly.
(gnus-article-update-lapsed-header): New variable.
shr.el (shr-put-color): Don't do the box padding in tables, since they're already padded.
gnus-util.el (float-time): If float-time is bound, always use it on all Emacsen. It's unclear why the subrp check was there.
(time-date): Require to make some autoload issues on XEmacs go away.
gnus-draft.el (gnus-draft-clear-marks): New function to be run as an exit hook to nix out all data on readedness on group exit.
gnus-sum.el (gnus-auto-select-subject): Doc typo.
mm-view.el (mm-display-shell-script-inline): Fix typo in docstring.
(mm-display-javascript-inline): New function.
mm-decode.el (mm-inline-media-tests): Add application/javascript viewing function.
nnimap.el (nnimap-open-connection-1): Store the actual stream type used.
(nnimap-login): Prefer plain LOGIN if it's enabled (since it requires fewer round trips than CRAM-MD5, and it's less likely to be buggy), and we're using an encrypted connection.
proto-stream.el: Alter the interface functions to also return the actual stream type used: network or tls.
shr.el: Use defface to create shr-tag-h[1-6] faces to fontify h[1-6] tags.
mml-smime.el (mml-smime-use): Make it a defcustom and default to 'epg if EPG is loaded.
message.texi (IDNA): Explain what it is.
gnus.texi (The Empty Backend): Document nnnil (bug #7653).
gnus-agent.el (gnus-agent-prompt-send-queue): Whitespace fix.
shr.el (shr-expand-newlines): Proof of concept implemantation of boxy backgrounds.
(shr-expand-newlines): Switch to using overlays to enable kill'n'yank in a more sensible manner.
shr.el (shr-image-fetched): Ditto.
shr.el (shr-image-fetched): Avoid having point move in the article buffer.
gnus-html.el (gnus-html-image-fetched): Kill the buffer anyway, and fix the bug in url-http.el instead.
shr.el (shr-image-fetched): Ditto.
gravatar.el (gravatar-retrieve): Be silent when retrieving.
gnus-gravatar.el (gnus-gravatar-insert): Don't move point around in the article buffer.
(gnus-gravatar-insert): Use blank space from the current buffer to avoid breaking text properties. This makes X-Sent updating work again.
gnus-art.el (gnus-article-read-summary-keys): Don't call disabled commands.
mailcap.el (mailcap-mime-extensions): Rename text/org to text/x-org.
gnus-draft.el (gnus-group-send-queue): Update the queue group in the group buffer after sending the queue.
gnus-draft.el (gnus-group-send-queue): Really refresh the queue group after sending.
gnus-agent.el (gnus-agent-send-mail): Ditto.
gnus-group.el (gnus-group-refresh-group): New convenience function.
message.el (message-bogus-addresses): Remove commented-out value.
message.el (message-check-recipients): Display the encoded version of the bogus address if they differ.
flow-fill.el (fill-flowed): Make `delete-space' option correspond to "DelSp" parameter in RFC3676.
gnus-sum.el (gnus-summary-move-article): Protect against backends (i.e., nnimap) returning nil as the article number.
nnfolder.el (nnfolder-request-expire-articles): Return the list of unexpired articles. This fixes the regression that led expiry marks to disappear from nnfolder groups.
gnus-art.el (gnus-mime-inline-part): Use mm-display-inline rather than mm-insert-inline to insert inline part: this respect mm-inline-media-tests displayers.
mm-view.el (mm-display-shell-script-inline): New function.
mm-decode.el (mm-inline-media-tests): Add x-shellscript and x-sh.
mm-uu.el (mm-uu-type-alist): Add org block.
(mm-uu-org-src-code-block-extract): New function.
mm-view.el (mm-display-org-inline): New function.
mm-decode.el (mm-automatic-display): Add text/org.
mailcap.el (mailcap-mime-extensions): Add .org.
(gnus-button-push): Remove gnus-button-entry function, it fails heavily if you have the same regexp several times.
(gnus-button-push): Fix matching when regexp is symbol.
spam.el (spam-spamassassin-register-with-sa-learn): Insert a full From header with a date and "nobody" as the sender.
