master updated (72ec24d -> 1866e66)

[Juri Linkov]

jurta pushed a change to branch master.

      from  72ec24d   * doc/emacs/maintaining.texi (Bug Reference): Add 
debbugs-browse-mode.
       new  443d9ef   (completing-read): Add `group-function` to the completion 
metadata
       new  de168b7   (completion--insert-strings): Split function; Full group 
title support
       new  cacfd03   (minibuffer-completion-help): Do not check 
`completions-group` centrally
       new  836d69b   (completion--insert-vertical): Separate groups completely
       new  cb8b994   (minibuffer-completion-help): Add group sorting
       new  1866e66   * lisp/international/mule-cmds.el: Use group-function in 
read-char-by-name.


Summary of changes:
 doc/lispref/minibuf.texi        |  10 ++
 etc/NEWS                        |  15 +-
 lisp/international/mule-cmds.el |  56 ++-----
 lisp/minibuffer.el              | 356 ++++++++++++++++++++++++++++------------
 lisp/progmodes/xref.el          |  18 +-
 lisp/simple.el                  |  11 +-
 6 files changed, 298 insertions(+), 168 deletions(-)