Stop IoServer or check socket server status (running or not)
Hello. I have simple code from Rachet docs to start a socket server:

```
$server = IoServer::factory(
    new HttpServer(
        new WsServer(
            new Notify()
        )
    ),
    $config->socket->port,
    $config->socket->ip
);

$server->run();
```

But I would run this code in real production. So I should be sure, that socket server is always running. And I didn't find this functionality. So I'm using following code:

```
$server->loop->stop();
$server->run();
```

But I don't know is it correct. I run my server.php from cronjob every hour (for example).
