* Make SECRET_COLLECTION_DEFAULT and SECRET_COLLECTION_SESSION
be the simple aliases for those collections.
* Accept either an alias or a path in secret_password_store()
and secret_service_store() and friends.
* They all contain '_dbus_path' in their name
* Move secret_service_get_session_path() to the paths functionality
* Move the secret_collection_new() and secret_item_new() functionality
to the path based section.
* Make sure this property is kept in sync so it can be used
immediately in the logic to retrieve secrets or other stuff.
* We don't wait for a PropertiesChanged, which may come later