* src/nautilus-location-bar.c,h: (get_file_info_list),
	(try_to_expand_path), (editable_key_press_callback),
	(real_activate), (destroy), (nautilus_location_bar_initialize),
	(nautilus_location_bar_new), (nautilus_location_bar_set_location),
	(nautilus_location_bar_get_location),
	(nautilus_location_bar_update_label):

	fixed bug 6369, sluggish keyboard response in location bar. I improved
	this in two different ways: the expansion code is deferred to idle
	time now, so it doesn't get in the way of fast typing.  Also, the
	file info list is cached in memory, so it doesn't have to load it
	again for every keystroke.  I also made the instance variables
	private, instead of being exposed in the .h file.