added properties "fill-level", "show-fill-level" and

added properties "fill-level", "show-fill-level" and

2006-11-15  Michael Natterer  <mitch@imendio.com>

	* gtk/gtkrange.[ch]: added properties "fill-level",
	"show-fill-level" and "restrict-to-fill-level" and getters/setters
	for them. The "fill level" is an additional marker on the range's
	trough than can be e.g. used to indicate the amount of
	pre-buffering in a range showing the play position of streamed
	media. See the embedded API docs for details. Made GtkRangeLayout
	a GTypeInstance private struct and removed finalize()
	implementation. Fixes bug #349808

	* gtk/gtk.symbols: added the new symbols.