menu temporarily)

	* libnautilus-extensions/nautilus-view-identifier.h,
	* libnautilus-extensions/nautilus-view-identifier.c:
	(nautilus_view_identifier_copy): New function, does the obvious.

	* src/nautilus-applicable-views.h: Made NautilusNavigationInfo
	store a NautilusViewIdentifier instead of just the iid part
	in initial_content_iid (now initial_content_id).

	* src/nautilus-applicable-views.c: (set_initial_content_id),
	(got_file_info_callback), (nautilus_navigation_info_free):
	Reworked code to handle change from char *iid to NautilusViewIdentifier.

	* src/nautilus-window.h: New field for content_view_id,
	a NautilusViewIdentifier for the current view.

	* src/nautilus-window-private.h,
	* src/nautilus-window-manage-views.c:
	(nautilus_window_load_content_view): Now takes a
	NautilusViewIdentifier * instead of just a char *,
	and resets content_view_id field.
	(nautilus_window_update_state): Reworked code to handle
	initial_content_iid change.

	* src/nautilus-window.c:
	(nautilus_window_destroy): Destroy content_view_id.
	(nautilus_window_switch_views), (view_menu_switch_views_callback):
	Reworked to take NautilusViewIdentifier * instead of just char *.
	(create_content_view_menu_item): New helper function, extracted
	from nautilus_window_load_content_view_menu.
	(replace_special_current_view_in_content_view_menu): New
	function, does the work of putting the current content view
	as the initial item in the menu, followed by a separator.
	(nautilus_window_synch_content_view_menu): Calls
	replace_special_current_view_in_content_menu if the current view
	is not found in the menu.
	(chose_component_callback): Took out fixed FIXMEs.
	(nautilus_window_load_content_view_menu): Now calls function
	that was extracted from it.