2006-09-03  Michael Natterer  <mitch@gimp.org>

	* app/dialogs/palette-import-dialog.[ch]: removed
	palette_inport_dialog_show() and palette_import_dialog_destroy()
	and don't remember the created dialog internally. Instead, made
	palette_import_dialog_new() public.

	* app/dialogs/dialogs.c
	* app/dialogs/dialogs-constructors.[ch]: register it with the
	toplevel dialog factory as singleton toplevel.

	* app/actions/palettes-commands.c (palettes_import_cmd_callback):
	use the dialog factory to create the palette import dialog.