Merge from origin/emacs-25

Merge from origin/emacs-25

dacde7e * etc/AUTHORS: Update the AUTHORS file
478ca5d ; fix changelog entries
2b7d006 ; make change-history-commit
851decb * lisp/dired-aux.el: Require cl-lib.  (Bug#22613)
47896c8 ; Improve commentary in insdel.c
53ca1e1 Index tilde characters in names of backup files
d97f522 Document deprecation of hi-lock-mode's 'C-x w' bindings
b55f06d ; * etc/NEWS: Use double spaces to end a sentence.
28bb214 Announce that the `C-x w' bindings are deprecated
1c98f98 Suppress GNUstep hardening
d82f24b Fix redisplay after a large insertion
85a2753 Revert "Fix gnus-group-get-new-news-this-group on group with
        closed server"
e8e3db0 ; Improve merge documentation in CONTRIBUTE
5be9989 * lib-src/make-docfile.c: Include stdarg.h.
c95ebbf Extend gpm-mouse-mode's doc string and doc to point out
        limitations.