Fix bug #319974:

Fix bug #319974:

2005-10-26  Michael Natterer  <mitch@imendio.com>

	Fix bug #319974:

	* gtk/gtkcellrendererpixbuf.c (gtk_cell_renderer_pixbuf_set_property):
	make sure that setting any of pixbuf/stock-id/icon-name resets the
	others because they are mutually exclusive, and that unsetting any
	of them only resets the pixbuf and nothing else. Also added
	some missing g_object_notify().

	(gtk_cell_renderer_pixbuf_get_property): simplified calls to
	g_value_set_object().

	(gtk_cell_renderer_pixbuf_create_stock_pixbuf)
	(gtk_cell_renderer_pixbuf_create_named_icon_pixbuf): added
	g_object_notify ("pixbuf").