Fixed a lot of bugs into PrintIPP module. Seems to be stable enough now

htdocs/admin/commande.php

htdocs/admin/facture.php

htdocs/admin/order_extrafields.php

htdocs/admin/orderdet_extrafields.php

htdocs/admin/propal.php

htdocs/admin/supplier_invoice.php

htdocs/admin/supplier_order.php

htdocs/admin/supplierinvoice_extrafields.php

htdocs/admin/supplierorder_extrafields.php

htdocs/comm/admin/propal_extrafields.php

htdocs/comm/admin/propaldet_extrafields.php

htdocs/comm/propal.php

htdocs/commande/card.php

htdocs/compta/facture.php

htdocs/compta/facture/admin/facture_cust_extrafields.php

htdocs/compta/facture/admin/facturedet_cust_extrafields.php

htdocs/core/actions_printipp.inc.php

htdocs/core/class/dolgraph.class.php

htdocs/core/class/dolprintipp.class.php

htdocs/core/class/html.formfile.class.php