The constructor for the UpdateConnection class. This method is also called from the classes that extend this class and override this method.
Overrides FileTransfer::__construct
function __construct($jail, $username, $password, $hostname = "localhost", $port = 22) {
$this->username = $username;
$this->password = $password;
$this->hostname = $hostname;
$this->port = $port;
parent::__construct($jail);
}