Add a parameter to configure the firewall name (issue #49)
Add missing PHPdoc
Add firewall_name configuration option in README
Add class for AccessDeniedHandler & AuthenticationEntryPoint

    firewalls:
        secured_area:
            pattern:    ^/admin
            access_denied_handler: ekino.wordpress.security.entry_point
            entry_point: ekino.wordpress.security.entry_point
            anonymous: ~