Feature/paginator annotation

Just a small thing: wouldn't it better to transform the condition using De Morgan law to:

    if(
        !(isset($namespace[0]) &&
        isset($bundles[$namespace[0]]) &&
        $bundles[$namespace[0]] instanceof Bundle &&
        isset($namespace[1]))
    ) { ... }

Resolution of the AND operator will immediately return ```false``` when a falsy term is encountered, with no need to evaluate all of the them