LeaveRedirect strategy refactoring

- Do not leave items of class RedirectRoute
- AutoRoute class now natively supports redirect

Will Fix #111 
here we where using routeTarget: https://github.com/symfony-cmf/RoutingBundle/blob/master/Model/RedirectRoute.php#L33-L36

if we would use the same name, querying for routes that redirect to a document would be found across both redirection classes.