Add packages/register-list/register-list.el
Fix version numbers of sisu-mode, register-list, and windresize.
* admin/update-archive.sh: Keep old packages.
register-list.el: Update copyright year.
* register-list.el: Use lexical-binding.  Remove redundant :groups.
(register-list-preserve-pos): Don't eval `force-line'.  Use forward-line
to better match line-number-at-pos's behavior.
(register-list-refresh): Don't use the line number that happens to be current
during macro-expansion.
(register-list): Remove unused arg `reg-alist'.  Use dolist.  Use a closure
rather than `(lambda ...).
(register-list-edit-value): Remove unused var `new-val'.
Update copyright years.
* packages/register-list/register-list.el (register-list): Pass arg to
called-interactively-p.