2005-09-24  Michael Natterer  <mitch@gimp.org>

	Applied (slightly modified) patch from Sylvain Foret which adds
	"Close All" menu entries and dialog. Fixes bug #163532.

	* app/actions/file-actions.c
	* app/actions/file-commands.[ch]: added "file-close-all" action
	and callback.

	* app/dialogs/dialogs-constructors.[ch]
	* app/dialogs/dialogs.c
	* app/dialogs/quit-dialog.[ch]: added close all dialog which is a
	modified quit dialog.

	* app/widgets/gimphelp-ids.h: added help ID.

	* menus/image-menu.xml.in
	* menus/toolbox-menu.xml.in: add close all next to quit.