* libnautilus-extensions/nautilus-icon-container.c:
	* libnautilus-extensions/nautilus-icon-container.h:
	(compare_icons), (idle_handler), (nautilus_icon_container_move_icon),
	(size_allocate), (nautilus_icon_container_initialize_class),
	(nautilus_icon_container_set_auto_layout):
	First cut at the auto-layout feature. It just does a lot of
	re-laying things out.

	* libnautilus-extensions/nautilus-icon-container.h:
	* libnautilus-extensions/nautilus-list.h:
	Added interfaces for telling whether to use single-click mode or
	not. A first step in moving preferences code out of here and
	into the file-manager classes.

	* libnautilus-extensions/fm-icon-view.c:
	(create_icon_container), (icon_container_compare_icons_callback):
	Provide a sorting order for the auto-layout mode.

	* librsvg/test-rsvg.c:
	Rolled out the change to work with the old popt that Pavel
	accidentally checked as Gene in when he was helping me.