Merge from origin/emacs-27

Merge from origin/emacs-27

72f87f8873 (origin/emacs-27) NS port documentation updates
5b19db98ad ; * etc/NEWS: correctly describe what fido-mode is
fc47e3ad99 Let fido-mode users force a minibuffer-exit
e734961d4c icomplete-fido-exit: New command for the M-j binding
335a9bd215 minibuffer-force-complete-and-exit: Allow input with no ma...
34132d4bf6 ; * etc/NEWS: Mark 2 entries as fully documented.
d28b73841b ; * etc/NEWS: Fix the 'mml-secure-openpgp-sign-with-sender...
d1d56a9fd9 ; * etc/NEWS: 'thunk-let' and 'thunk-let*' are fully docum...
fc4f4efabf ; * etc/NEWS: No need to document vc-hg and mergebase chan...
9e8456cf0f ; * etc/NEWS: No need to document changes in Octave mode.
25b4d6fa28 ; * etc/NEWS: No need to document changes in map.el and se...
fc4d0f86da ; * etc/NEWS: No need to document Ido news.
d4ac478cb3 ; * etc/NEWS: No need to document news of doc-view.el.
08c042bd26 Document that 'byte-compile-dynamic' is obsolete
512b66abd7 ; * etc/NEWS: No need to document 'goto-address-uri-scheme...
3103c01c3e ; * etc/NEWS: Formatting fixes.
98306fdfb8 ; * etc/NEWS: No need to document deprecation of 'cl'.
6281ed58be ; * etc/NEWS: No need to document the change in 'list-proc...
e252341e11 ; * etc/NEWS: 'backup-by-copying-when-privileged-mismatch'...
ec5a267ddc ; * etc/NEWS: Mark 'byte-count-to-string-function' as undo...
89307ebccd ; * etc/NEWS: Mark 'completion-common-part' face entry as ...
fdbe7cacfb Document the changes in 'read-answer'
10c58356e4 Document changes in lexical-binding
5cb312b5b9 Update ERC mailing list address
cb1877321b Use regexp-opt to define bibtex-autokey-transcriptions.  (...
3f9c340de0 Improve documentation of 'table-generate-source'
33b31dc314 Attempt to avoid rare segfaults in show_mouse_face
88c6db9196 Avoid crashes when a fontset has strange entries
1814c7e158 Fix rx error with ? and ??
40fb20061e * lisp/emacs-lisp/rx.el (rx--string-to-intervals): Fix err...
08d7d28d35 Fix args in 'window-text-pixel-size' call in 'fit-window-t...
cb1e30910e Have pulse.el preserve existing overlay priorities

# Conflicts:
#	etc/NEWS