Fix: Libraries not used inside a web container must not use a GETPOST function.

htdocs/comm/propal.php

htdocs/commande/fiche.php

htdocs/compta/paiement/rapport.php

htdocs/includes/modules/commande/modules_commande.php

htdocs/includes/modules/facture/modules_facture.php

htdocs/includes/modules/propale/modules_propale.php