* lisp/gnus/nnheader.el (nnheader-read-timeout)
(nnheader-file-name-translation-alist): Remove OS/2 case, and simplify.
* lisp/emulation/viper-util.el (viper-color-defined-p):
* lisp/net/pop3.el (pop3-read-timeout):
* lisp/net/imap.el (imap-read-timeout):
* lisp/url/url-privacy.el (url-setup-privacy-info): Remove OS/2 case.
* lisp/emulation/viper-ex.el (viper-glob-function):
* lisp/vc/ediff-util.el (ediff-submit-report): Doc fix.
* lisp/cus-edit.el (custom-display): Remove "pm" (OS/2).
* doc/emacs/msdos-xtra.texi (MS-DOS):
* doc/misc/gnus.texi (Various Various):
* doc/misc/viper.texi (Rudimentary Changes): Remove mentions of OS/2.
; * lisp/url/url.el, lisp/url/url-vars.el:
; * lisp/progmodes/cperl-mode.el: Remove old comments.

* lisp/url/url.el, lisp/url/url-cache.el, lisp/url/url-dav.el,
lisp/url/url-expand.el, lisp/url/url-file.el, lisp/url/url-imap.el,
lisp/url/url-ldap.el: Use `url-p' instead of `vectorp'.

* lisp/url/url-http.el (url-http): Check for type `url' instead of
`vector'.

This also refactors digest authentication functions in url-auth.el.

* lisp/url/url-auth.el (url-digest-auth, url-digest-auth-create-key):
(url-digest-auth-build-response, url-digest-auth-directory-id-assoc):
(url-digest-auth-name-value-string, url-digest-auth-source-creds):
(url-digest-cached-key, url-digest-cache-key, url-digest-find-creds):
(url-digest-find-new-key, url-digest-prompt-creds): Add new functions
to simplify code and aid in unit testing.
(url-digest-auth-build-response): Hook up new functionality, or fall
back to previous.
(url-digest-auth-make-request-digest-qop):
(url-digest-auth-make-cnonce, url-digest-auth-nonce-count):
(url-digest-auth-name-value-string): Add new helper functions.
* test/lisp/url/url-auth-tests.el (url-auth-test-colonjoin):
(url-auth-test-digest-ha1, url-auth-test-digest-ha2):
(url-auth-test-digest-request-digest): Add a few tests as now more
features are testable via intermediate functions.
(url-auth-test-challenges, url-auth-test-digest-request-digest): Test
the new implementation.  Parts of these were accidentally already
merged in the past.

* Makefile.in (mostlyclean, clean, maybeclean_dirs, distclean)
(bootstrap-clean, maintainer-clean):
Clean ‘test’, not ‘test/automated’.  Test for existence of
subdirectory only for ‘test’, not for directories that should
always exist.
* admin/MAINTAINERS, etc/TODO, lisp/emacs-lisp/bytecomp.el:
* lisp/emacs-lisp/seq.el, lisp/emacs-lisp/thunk.el:
* lisp/man.el (Man-parse-man-k):
* lisp/url/url-domsuf.el, make-dist:
* test/file-organization.org:
Fix obsolete references to test/automated.

2e2a806 Fix copyright years by hand
5badc81 Update copyright year to 2017

Run admin/update-copyright.

Following defcustom where added or modified for 25.2 release.
In fact all these changes belong to 26.1 release.
* lisp/battery.el (battery-linux-sysfs-regexp)
* lisp/comint.el (comint-password-prompt-regexp)
* lisp/dired.el (dired-always-read-filesystem)
* lisp/image.el (image-scaling-factor)
* lisp/ibuf-ext.el (ibuffer-never-search-content-name)
(ibuffer-never-search-content-mode)
* lisp/mouse.el (mouse-select-region-move-to-beginning)
* lisp/net/net-utils.el (iwconfig-program, iwconfig-program-options)
(netstat-program, route-program, route-program-options)
* lisp/net/sieve-manage.el (sieve-manage-default-stream)
* lisp/progmodes/grep.el (grep-save-buffers)
* lisp/vc/add-log.el (change-log-directory-files)
* lisp/url/url-vars.el (url-user-agent)
* lisp/vc/vc-hg.el (vc-hg-symbolic-revision-styles)
(vc-hg-use-file-version-for-mode-line-version)
(vc-hg-parse-hg-data-structures)
* lisp/wdired.el (wdired-create-parent-directories)
* lisp/faces.el (homoglyph, nobreak-hyphen, read-multiple-choice-face)
* lisp/gnus/gnus-art.el (gnus-article-encrypt-protocol)
(gnus-button-url-regexp)
* lisp/window.el (switch-to-buffer-preserve-window-point)
* lisp/ibuffer.el (ibuffer-formats, ibuffer-locked-char)
(ibuffer-locked-buffer)
* lisp/textmodes/flyspell.el (flyspell-sort-corrections-function)
* lisp/emacs-lisp/edebug.el (edebug-sit-on-break)
* lisp/gnus/message.el (message-user-fqdn)
* lisp/simple.el (shell-command-dont-erase-buffer)
(extended-command-suggest-shorter)
* lisp/net/shr.el (shr-use-fonts)
* lisp/files.el (mounted-file-systems, kill-emacs-query-functions)

* lisp/url/url-auth.el:
* lisp/url/url-expand.el:
* lisp/url/url-future.el:
* lisp/url/url-parse.el:
* lisp/url/url-util.el: Turn on lexical-binding.

This fixes a recently-introduced bug in delete-directory,
where the code assumes the C locale when determining
whether a file-error corresponds to a missing file (Bug#24714).
* doc/lispref/errors.texi (Standard Errors):
* doc/lispref/files.texi (Changing Files):
* etc/NEWS:
Document this.
* doc/lispref/loading.texi (How Programs Do Loading):
Say "a file-error" rather than "the error file-error" since
it might be a file-missing now.
* lisp/emacs-lisp/bytecomp.el (byte-compile-file):
* lisp/epa-file.el (epa-file--find-file-not-found-function):
(epa-file-insert-file-contents, epa-file-write-region):
* lisp/ffap.el (find-file-at-point, dired-at-point):
* lisp/jka-compr.el (jka-compr-insert-file-contents)
(jka-compr-insert-file-contents):
* lisp/net/ange-ftp.el (ange-ftp-barf-if-not-directory)
(ange-ftp-insert-file-contents, ange-ftp-copy-file-internal):
* lisp/progmodes/etags.el (visit-tags-table):
* lisp/url/url-handlers.el (url-copy-file):
* src/fileio.c (report_file_errno):
Signal file-missing if appropriate.
* lisp/epa-file.el (epa-file-insert-file-contents):
* lisp/jka-compr.el (jka-compr-insert-file-contents):
Don't assume file-error is a leaf in the error hierarchy.
* lisp/files.el (files--force):
* lisp/gnus/nnmaildir.el (nnmaildir--enoent-p):
* lisp/jka-compr.el (jka-compr-insert-file-contents):
Use file-missing to detect whether the file is missing.
* lisp/url/url-handlers.el (url-copy-file):
Signal file-already-exists if appropriate.
* src/fileio.c (syms_of_fileio): Define file-missing.

2016-10-18  Paul Eggert  <eggert@cs.ucla.edu>