2001-10-18  Mark McLoughlin  <mark@skynet.ie>

        * applet.c, basep-widget.c, button-widget.c,
          conditional.c, drawer.c, extern.c, foobar-widget.c
          gnome-panel-properties.c, gnome-panel-screenshot.c
          gnome-run.c, launcher.c, logout.c, main.c
          menu-properties.c, menu-rh.c, menu.c:
        ported gnome_.*_file -> gnome_program_locate_file
               gnome_unconditional_.*_file ->
gnome_program_locate_file
               g_file_exists -> g_file_test
               g_unix_error_string -> g_strerror