2001-11-20  Mark McLoughlin  <mark@skynet.ie>

        Use BonoboProperty bags ... sigh ... someone shoulda told me ...

        * panel-applet-frame.c:
        (panel_applet_frame_change_orient),
        (panel_applet_frame_change_size),
        (panel_applet_frame_change_background_pixmap),
        (panel_applet_frame_change_background_colour),
        (panel_applet_frame_clear_background): use bonobo_pbclient_*
        (panel_applet_frame_construct): get property bag.

        * panel-applet-shell.c, panel-applet-private.h:
        kill useless functions, we now have a very useful useless
        PanelAppletShell object.

        * panel-applet.c:
        (panel_applet_parse_colour), (panel_applet_get_prop),
        (panel_applet_set_prop), (panel_applet_property_bag): impl
        property bag stuff.
        (panel_applet_class_init): tweak signal defs.
        (panel_applet_construct): setup the property bag.

        * panel-widget.c: (panel_widget_class_init): tweak signal def.

        * test-bonobo-applet.c:
        (test_applet_new): do a size change so the entry will have
        some text before it gets a size change.

        * Makefile.am: add panel-applet.h to glib-mkenus list.