Python 3.5, released in mid September 2015, introduced a few new
keywords to better support asynchronous code, "async" and "await"
in particular. See https://www.python.org/dev/peps/pep-0492/ for
details. (Bug#21783)
* lisp/progmodes/python.el (python-rx-constituents): Add async
def/for/with as block-start and async def as defun.
* lisp/progmodes/python.el (python-font-lock-keywords): Add async
def/for/with as keyword.
* test/automated/python-tests.el (python-indent-after-async-block-1,
python-indent-after-async-block-2, python-indent-after-async-block-3,
python-nav-beginning-of-defun-3): New tests to test indentation and
navigation for the async keyword.

Do the same for "permit", "enable", and "prevent".

* doc/emacs/mule.texi:
* doc/lispref/control.texi:
* doc/lispref/display.texi:
* doc/lispref/frames.texi:
* doc/lispref/functions.texi:
* doc/lispref/nonascii.texi:
* doc/lispref/streams.texi:
* doc/lispref/windows.texi:
* doc/misc/dbus.texi:
* doc/misc/eww.texi:
* doc/misc/flymake.texi:
* doc/misc/octave-mode.texi:
* doc/misc/org.texi:
* doc/misc/reftex.texi:
* doc/misc/tramp.texi:
* doc/misc/wisent.texi:
* etc/NEWS:
* lisp/autorevert.el:
* lisp/cedet/mode-local.el:
* lisp/cedet/semantic/senator.el:
* lisp/cedet/semantic/wisent.el:
* lisp/dos-fns.el:
* lisp/frameset.el:
* lisp/gnus/gnus-agent.el:
* lisp/gnus/mm-util.el:
* lisp/international/characters.el:
* lisp/ldefs-boot.el:
* lisp/mail/mailclient.el:
* lisp/man.el:
* lisp/mh-e/mh-search.el:
* lisp/net/tramp-cmds.el:
* lisp/net/tramp-gvfs.el:
* lisp/org/org-crypt.el:
* lisp/org/org-element.el:
* lisp/org/org-feed.el:
* lisp/org/org.el:
* lisp/org/ox-ascii.el:
* lisp/org/ox-icalendar.el:
* lisp/org/ox-publish.el:
* lisp/org/ox.el:
* lisp/play/gamegrid.el:
* lisp/play/gomoku.el:
* lisp/progmodes/antlr-mode.el:
* lisp/progmodes/python.el:
* lisp/progmodes/vhdl-mode.el:
* lisp/strokes.el:
* lisp/textmodes/ispell.el:
* lisp/tree-widget.el:
* lisp/vc/pcvs.el:
* lisp/window.el:
* src/lisp.h:
* src/w32.c:
* src/w32heap.c:
* src/w32term.c:
* src/window.c:
* src/xfaces.c:

Replace solecisms like "This allow to do something" with a correct
alternative, such as "This allow you to do something", "This allows
something to be done" or "This allows the doing of something".

(python-shell-tramp-refresh-process-environment)
(python-shell-calculate-pythonpath): use `split-string'
instead of defunct `tramp-compat-split-string'

* lisp/electric.el (electric-quote-comment)
(electric-quote-string, electric-quote-paragraph):
* lisp/epg-config.el (epg-gpgconf-program):
* lisp/rect.el (rectangle-preview):
* lisp/emacs-lisp/check-declare.el (check-declare-ext-errors):
* lisp/emacs-lisp/package.el (package-selected-packages)
(package-hidden-regexps):
* lisp/erc/erc.el (erc-network-hide-list, erc-channel-hide-list):
* lisp/eshell/em-term.el (eshell-destroy-buffer-when-process-dies):
* lisp/gnus/mml-sec.el (mml1991-signers, mml2015-signers)
(mml-smime-signers, mml1991-encrypt-to-self, mml2015-encrypt-to-self)
(mml-smime-encrypt-to-self, mml2015-sign-with-sender)
(mml-smime-sign-with-sender, mml2015-always-trust)
(mml-secure-fail-when-key-problem, mml-secure-key-preferences):
* lisp/net/browse-url.el (browse-url-conkeror-new-window-is-buffer)
(browse-url-conkeror-arguments):
* lisp/net/newst-reader.el (newsticker-download-logos):
* lisp/progmodes/gud.el (gud-guiler-command-name):
* lisp/progmodes/prog-mode.el (prettify-symbols-unprettify-at-point):
* lisp/progmodes/project.el (project-vc):
* lisp/progmodes/python.el (python-indent-guess-indent-offset-verbose)
(python-shell-remote-exec-path, python-shell-first-prompt-hook)
(python-shell-completion-native-disabled-interpreters)
(python-shell-completion-native-enable)
(python-shell-completion-native-output-timeout)
(python-shell-completion-native-try-output-timeout):
* lisp/progmodes/xref.el (xref):
* lisp/term/screen.el (xterm-screen-extra-capabilities):
* lisp/term/xterm.el (xterm-max-cut-length):
Add missing version tags.

Run admin/update-copyright.

* lisp/progmodes/python.el (python-shell-completion-at-point):
Unbreak in python-mode buffers.

Problem reported by Artur Malabarba in:
http://lists.gnu.org/archive/html/emacs-devel/2015-11/msg01513.html
Most of these fixes are to documentation; many involve fixing
longstanding quoting glitches that are independent of the
recent substitute-command-keys changes.  The changes to code are:
* lisp/cedet/mode-local.el (mode-local-augment-function-help)
(describe-mode-local-overload):
Substitute docstrings before displaying them.
* lisp/emacs-lisp/cl-macs.el (cl--transform-lambda):
Quote the generated docstring for later substitution.

* lisp/progmodes/python.el (auto-mode-alist):
Recognize .pyw files.

* lisp/progmodes/ruby-mode.el (auto-mode-alist):
Recognize .rbw files.