Improved OAuth errors handling

As discussed @lyrixx, we now rely on the `DefaultAuthenticationFailureHandler` of Symfony which handles redirection in a clean way and as our work in `ConnectAuthenticationFailureHandler` is already handled in `AbstractAuthenticationListener` which is already extended by `ConnectAuthenticationListener`
To be able to do that we need to make `OAuthException` extends `AuthenticationException`
Good catch!
@lyrixx I think we will need to break the API.