Merge from origin/emacs-25

Merge from origin/emacs-25

d08afa1 * etc/AUTHORS: Update the AUTHORS file
2668500 ;; * ChangeLog.2: ChangeLog update.
7acfaea ; ChangeLog fixes
97d28b4 * admin/authors.el (authors-valid-file-names): Addition.
9ab52f6 * admin/authors.el: Additions.
0e646c7 Warn about Cairo-related problems
bc4c07f Don't let completion break `declare' handling
66f95e0 Adjust match data before calling after-change-funs
52cf0d5 Do not show string-rectangle preview if minibuffer is empty
6a3d031 * etc/PROBLEMS: Add entry about selection problems under Plas...

# Conflicts:
#	ChangeLog.2
#	src/lisp.h