the definition of RouteInterface contains a static method, it' not graceful.

interface RouteInterface
{
    /**
     * Priority used for route stacks.
     *
     * @var integer
     * public $priority;
     */

    /**
     * Create a new route with given options.
     *
     * @param  array|\Traversable $options
     * @return void
     */
    public static function factory($options = array());

should we modify it like this?

interface RouteInterface
{
    /**
     * Priority used for route stacks.
     *
     * @var integer
     * public $priority;
     */

    /**
     * configure route with given options.
     *
     * @param  array|\Traversable $options
     * @return void
     */
    public function configure($options = array());