Special thanks for their comments and suggestions to:
    Fredrik Lundh
    Nick Mathewson
    Abdelkader Gouaich
    Rodrigo Benenson
    David LeBlanc
    John Krumpotick
    Rodrigo B. de Oliveira
    Dominic Hillenbrand
    Mark Andrew
    Reinhard Gantar
    Laszlo Kalman
    Mike O'Connor
    Heinz Preisig
    Tiberius Teng
    Johannes Schöön