GitLab

	* ibuf-ext.el (ibuffer-jump-to-buffer): Add support for filter
	groups: if the user asks for a hidden buffer, open the
	corresponding filter group to expose it.

	* ibuffer.el (ibuffer-mode-map): Add key binding `M-g' to
	`ibuffer-jump-to-buffer'.
	(ibuffer-jump-offer-only-visible-buffers): New user option.