2004-06-10  Michael Natterer  <mitch@gimp.org>

	* app/actions/image-actions.c
	* app/actions/image-commands.[ch]
	* app/actions/layers-actions.c
	* app/actions/layers-commands.[ch]: made the
	"image-convert-rgb/grayscale/indexed" and the
	"layers-mask-apply/delete" actions GimpEnumActions and merged
	their callbacks.