Inject remember_me services into LoginManager (support symfony 2.3 and higher)

Fix Remember me problem with Symfony 2.3.x (https://github.com/FriendsOfSymfony/FOSUserBundle/issues/1221, https://github.com/FriendsOfSymfony/FOSUserBundle/issues/747).
It would be better if remember_me services has some tag (link issue https://github.com/symfony/symfony/issues/3137)
indentation here is wrong