* libnautilus-extensions/nautilus-metadata.h:
	Removed NAUTILUS_METADATA_KEY_INITIAL_VIEW 'cuz it's not needed
	anymore.

	* libnautilus-extensions/nautilus-mime-actions.h:
	* libnautilus-extensions/nautilus-mime-actions.c:
	(nautilus_mime_get_default_component_for_uri_internal):
	New private function, returns both the default component
	and whether it was user-chosen (as opposed to just inherited
	from the value for this MIME type).
	(nautilus_mime_get_default_component_for_uri): Now calls
	this new function. Also fixed a bug where it was using a
	different metadata string than _set_default_, and thus
	never retrieving the stored value.
	(nautilus_mime_is_default_component_for_uri_user_chosen):
	New public function, reports whether the default component
	was chosen by the user or just inherited.

	* src/nautilus-window.c: (nautilus_window_switch_views):
	Call nautilus_mime_set_default_component_for_uri when the
	user explicitly chooses a view, rather than setting the
	now-obsolete "INITIAL_VIEW" metadata.

	* src/nautilus-applicable-views.c:
	(got_file_info_callback): Rename "fallback_id" to "default_id"
	and eliminate code that adds default component to menu here.
	The current view is always added to the menu in a special way
	if required later.
	(set_initial_content_id): Don't get remembered value, instead
	use nautilus_mime_is_default_component_for_uri_user_chosen to
	choose priority between default component and referring component.
	And don't require that the initial component is in the preferred
	list.