* epa.el (epa-error-buffer): New variable.
(epa-display-error): New function.
(epa-decrypt-file, epa-verify-file, epa-verify-region)
(epa-delete-keys, epa-import-keys): Display output sent to stderr.
(epa-sign-file, epa-sign-region, epa-encrypt-region)
(epa-export-keys, epa-insert-keys): Display output sent to stderr.
Use setf instead of epg-context-set-*.
* epa-file.el (epa-file-insert-file-contents): Use
epa-display-error instead of epa-display-info. Mimic the behavior
of jka-compr when decryption program is not found.
(epa-file-write-region): Use epa-display-error instead of
epa-display-info.
(vc-print-log-internal): Use cl-some.
* lisp/vc/vc-git.el (vc-git-region-history): New function.
(vc-git-region-history-mode-map)
(vc-git--log-view-long-font-lock-keywords)
(vc-git-region-history-font-lock-keywords): New vars.
(vc-git-region-history-font-lock): New function.
(vc-git-region-history-mode): New major mode.
* url-http.el (url-user-agent): New variable, can be function or
string. Suggested by Vibhav Pant <vibhavp@ubuntu.com>.
(url-http-user-agent-string): Use it.
* url-http.el (url-user-agent): New variable, can be function or
string. Suggested by Vibhav Pant <vibhavp@ubuntu.com>.
* epg.el (epg-context): Add new slot ERROR-OUTPUT.
(epg-error-output): New buffer-local variable.
(epg--start): Initialize epg-error-output.
(epg--process-filter): Record output lines sent to stderr, in
epg-error-output.
(epg-wait-for-completion): Copy epg-error-output to ERROR-OUTPUT
slot of context.
* epa-file.el (epa-file-insert-file-contents): On error, display
output sent to stderr.
(epa-file-write-region): Likewise.
* admin/notes/repo: Avoid "DVCS" acronym without first explaining it.
Mention using the first line of a ChangeLog as the topic line, and
that commit messages should use UTF-8.
* lisp/mouse.el (mouse-drag-line): Fix misspelling of "right-fringe".
autoloading when specified as a lambda.
* lisp/emacs-lisp/edebug.el (edebug-safe-prin1-to-string): Assume that
edebug-prin1-to-string already handles circularity.
(read-extended-command): Set it.
Don't complete obsolete commands.
(execute-extended-command--shorter-1)
(execute-extended-command--shorter): New functions.
(execute-extended-command): Use them to suggest shorter names.
(indicate-copied-region, deactivate-mark): Use region-active-p.
src/xdisp.c (Fdump_glyph_matrix, Fdump_frame_glyph_matrix): Doc fix.
(Fdump_frame_glyph_matrix): Don't segfault if invoked on a GUI
frame; instead, print an error message.
