RequestListener does not collect user-data

[cklm]

There are cases where line 72 in RequestListener fails, even if an user is authenticated (for example, when dealing with more than one firewall). Symfony throws an Symfony\Component\Security\Core\Exception\AuthenticationCredentialsNotFoundException in that case. I suggest changing that line to check, if an user is given in $token.

[Jean85]

Solved with #265.