GitLab

Fixes: debbugs:19131

* doc/misc/eww.texi (Basics): Document managing multiple eww buffers.

* lisp/net/eww.el (eww-buffers-mode): New major mode.
(eww-list-buffers, eww-buffer-select, eww-buffer-show-next)
(eww-buffer-show-previous, eww-buffer-kill, eww-buffer-show): New
commands/functions.