GitLab

	* vip.el (vip-escape-to-emacs, vip-prefix-arg-value,
	vip-prefix-arg-com): Use unread-command-event instead of
	unread-command-char; respect its new semantics.

	* vip.el (vip-delete-char, vip-delete-backward-char, ex-delete):
	Don't pass nil as a fourth argument to vip-append-to-register; it
	takes only three.
	(vip-mark-point, ex-mark): Pass required second argument to
	point-to-register.