* lisp/foldout.el: Use lexical-binding.  Doc and formatting fixes.
Quote function symbols as such.

* lisp/foldout.el (foldout-hide-flag):
(foldout-show-flag): Delete Emacs 19 compat code and make obsolete.
(foldout-exit-fold): Don't use above obsolete variable.

* lisp/align.el (align-mode-rules-list)
(align-mode-exclude-rules-list):
* lisp/bookmark.el (bookmark-current-bookmark)
(bookmark-annotation-name)
(bookmark--annotation-from-bookmark-list):
* lisp/calc/calc-embed.el (calc-embedded-all-active)
(calc-embedded-some-active):
* lisp/comint.el (comint-password-function):
* lisp/completion.el (completion-syntax-table):
* lisp/dframe.el (dframe-track-mouse-function)
(dframe-help-echo-function, dframe-mouse-click-function)
(dframe-mouse-position-function, dframe-timer)
(dframe-attached-frame, dframe-controlled):
* lisp/ehelp.el (electric-help-orig-major-mode):
* lisp/eshell/esh-util.el (eshell-path-env):
* lisp/expand.el (expand-pos, expand-index, expand-point):
* lisp/face-remap.el (text-scale-mode-remapping)
(text-scale-mode-lighter, text-scale-mode-amount)
(text-scale-remap-header-line, buffer-face-mode-remapping):
* lisp/ffap.el (ffap-menu-alist):
* lisp/files-x.el (connection-local-variables-alist):
* lisp/foldout.el (foldout-fold-list, foldout-mode-line-string):
* lisp/follow.el (follow-start-end-invalid):
* lisp/forms.el (forms--mode-setup):
* lisp/gnus/message.el (message-cross-post-old-target)
(message-options):
* lisp/help-mode.el (help-xref-stack, help-xref-forward-stack)
(help-xref-stack-item, help-xref-stack-forward-item):
* lisp/hexl.el (hexl-mode--old-var-vals, hexl-ascii-overlay):
* lisp/hilit-chg.el (hilit-chg-string):
* lisp/ido.el (ido-eoinput):
* lisp/imenu.el (imenu-generic-expression)
(imenu-create-index-function, imenu-default-goto-function)
(imenu-prev-index-position-function)
(imenu-extract-index-name-function, imenu-name-lookup-function)
(imenu-syntax-alist, imenu-case-fold-search):
* lisp/jka-compr.el (jka-compr-really-do-compress):
* lisp/language/ethio-util.el (ethio-prefer-ascii-space):
* lisp/leim/quail/hangul.el (hangul-input-method-help-text):
* lisp/leim/quail/japanese.el (quail-japanese-package-saved):
* lisp/linum.el (linum-overlays, linum-available):
* lisp/man.el (Man-original-frame, Man-arguments, Man--sections)
(Man--refpages, Man-page-list, Man-current-page)
(Man-page-mode-string):
* lisp/pcomplete.el (pcomplete-current-completions)
(pcomplete-last-completion-length)
(pcomplete-last-completion-stub, pcomplete-last-completion-raw)
(pcomplete-last-window-config, pcomplete-window-restore-timer):
* lisp/reveal.el (reveal-open-spots, reveal-last-tick):
* lisp/ruler-mode.el (ruler-mode):
* lisp/scroll-lock.el (scroll-lock-preserve-screen-pos-save):
* lisp/server.el (server-buffer-clients, server-existing-buffer):
* lisp/tab-line.el (tab-line-exclude):
* lisp/tar-mode.el (tar-data-buffer, tar-data-swapped):
* lisp/thumbs.el (thumbs-current-tmp-filename)
(thumbs-current-image-filename, thumbs-extra-images)
(thumbs-image-num, thumbs-buffer, thumbs-marked-list):
* lisp/tutorial.el (tutorial--point-before-chkeys)
(tutorial--point-after-chkeys, tutorial--lang):
* lisp/url/url-vars.el (url-current-object)
(url-current-mime-headers, url-current-lastloc):
* lisp/view.el (view-mode, view-old-buffer-read-only)
(view-old-Helper-return-blurb, view-page-size)
(view-half-page-size, view-last-regexp, view-return-to-alist)
(view-exit-action, view-overlay):
* lisp/wid-edit.el (widget-global-map, widget-field-new)
(widget-field-list, widget-field-last, widget-field-was):
* lisp/woman.el (woman-imenu-done): Prefer defvar-local.

Change calls from 'read-event' to 'read-key' in libraries expecting
mouse events.  Do this only when 'xterm-mouse-mode' is enabled.  That
way those libraries read decoded mouse events instead of the
underlying escape sequence.  Add a parameter to 'read-key' that avoids
running any of the unbound fallbacks in 'read-key-sequence' so the
libraries can read mouse button-down events.

For backward compatibility purposes, the above logic is contained in a
new internal-only function: 'read--potential-mouse-event'.

* doc/lispref/commands.texi (Reading One Event): Document new
parameter to 'read-key'.  Mention that non-character events on
terminals need 'read-key'.
* lisp/subr.el (read-key-full-map): Add new keymap used by 'read-key'.
(read-key): Add new parameter 'fallbacks-disabled' to prevent running
any of the unbound fallbacks normally run by 'read-key-sequence'.
(read--potential-mouse-event): Add new function that calls 'read-key'
or 'read-event' depending on if 'xterm-mouse-mode' is set.
* lisp/foldout.el (foldout-mouse-swallow-events):
* lisp/isearch.el (isearch-pre-command-hook):
* lisp/mouse-drag.el (mouse-drag-throw, mouse-drag-drag):
* lisp/mouse.el (mouse-drag-secondary):
* lisp/ruler-mode.el (ruler-mode-mouse-grab-any-column)
(ruler-mode-mouse-drag-any-column-iteration):
* lisp/strokes.el (strokes-read-stroke, strokes-read-complex-stroke):
* lisp/textmodes/artist.el (artist-mouse-draw-continously)
(artist-mouse-draw-poly, artist-mouse-draw-2points):
* lisp/vc/ediff-wind.el (ediff-get-window-by-clicking):
* lisp/wid-edit.el (widget-button--check-and-call-button)
(widget-button-click): Call 'read--potential-mouse-event' instead of
'read-event'.
* lisp/wid-edit.el (widget-key-sequence-read-event): Call 'read-key'
with 'fallbacks-disabled' set instead of 'read-event'.  Unlike above
changes, this is unconditionally applied so it works for function
keys too.  Apply 'local-function-key-map' instead of
'function-key-map' as that contains the full terminal translations.
* lisp/vc/ediff.el (ediff-windows): Use 'display-mouse-p' to check if
a mouse is available.
* src/lread.c (Fread_event): Recommend 'read-key' in docstring for
'read-event' for non-character events.

Run "TZ=UTC0 admin/update-copyright".

* lisp/align.el (align-highlight-rule):
* lisp/bookmark.el (bookmark-maybe-sort-alist):
* lisp/emacs-lisp/advice.el (ad-read-advice-name)
(ad-retrieve-args-form, ad-make-hook-form, defadvice)
(ad-with-originals):
* lisp/foldout.el (foldout-inhibit-key-bindings):
* lisp/gnus/gnus-bookmark.el (gnus-bookmark-maybe-sort-alist):
* lisp/mail/rfc822.el (rfc822-addresses-1):
* lisp/net/eudcb-ldap.el (eudc-ldap-cleanup-record-simple):
* lisp/net/net-utils.el (network-connection-to-service):
* lisp/net/socks.el (socks-build-auth-list):
* lisp/org/ox-odt.el (org-odt--image-size):
* lisp/pcomplete.el (pcomplete-command-completion-function)
(pcomplete-default-completion-function, pcomplete-opt):
* lisp/progmodes/cperl-mode.el (cperl-highlight-charclass)
(cperl-tags-hier-init, cperl-tags-treeify)
(cperl-next-interpolated-REx, cperl-time-fontification):
* lisp/shadowfile.el (shadow-copy-files, shadow-shadows-of-1)
(shadow-save-buffers-kill-emacs):
* lisp/strokes.el (strokes-renormalize-to-grid):
* lisp/tempo.el (tempo-insert, tempo-forward-mark)
(tempo-backward-mark):
* lisp/textmodes/artist.el (artist-submit-bug-report):
* lisp/textmodes/ispell.el (ispell-complete-word):
* lisp/url/url-auth.el (url-get-authentication):
* lisp/url/url-cache.el (url-cache-create-filename-human-readable):
* lisp/vcursor.el (vcursor-find-window):
* test/lisp/textmodes/reftex-tests.el
(reftex-parse-bibtex-entry-test): Don't quote lambdas.

Run "TZ=UTC0 admin/update-copyright $(git ls-files)".

Restore lines saying "Maintainer: emacs-devel@gnu.org" when there is
no special maintainer for a file.  Although this wasn't documented
it was common practice and removing the lines didn't have consensus.