Support QAbstractSocket::LowDelayOption with QNAM

    //socket->setSocketOption(QAbstractSocket::LowDelayOption, 1);
    // We have this commented out now. It did not have the effect we wanted. If we want to
    // do this properly, Qt has to combine multiple HTTP requests into one buffer
    // and send this to the kernel in one syscall and then the kernel immediately sends
    // it as one TCP packet because of TCP_NODELAY.
    // However, this code is currently not in Qt, so we rely on the kernel combining
    // the requests into one TCP packet.