Add redirect support when user is connected or not

This PR make a BC from config. To prevent this I have write an alias setter between "redirect_to_route' and "redirect_to_route_connected". I don't know if you prefer a BC or this solution.

I need some help for writing test because we need to simulate a connected user or not and provide a Zend\Mvc\Application with an AuthenticationService for RedirectStrategyTest class