Wed Feb 21 15:41:34 2001  Jonathan Blandford  <jrb@redhat.com>

	* gtk/gtktreestore.c: removed signals.  Moved to inherit from
	GObject instead of GtkObject.

	* gtk/gtkliststore.c: ditto.

	* gtk/gtktreemodelsort.c: ditto.

	* gtk/gtktreemodel.c (gtk_tree_model_base_init): moved signals to
	GtkTreeModelIface, instead of in each model.