Merge pull request #806 from FHenry/develop_orderextrafield

htdocs/admin/commande.php

htdocs/admin/order_extrafields.php

htdocs/admin/supplier_invoice.php

htdocs/commande/class/commande.class.php

htdocs/commande/fiche.php

htdocs/core/lib/order.lib.php

...re/modules/supplier_order/modules_commandefournisseur.php

.../core/modules/supplier_order/pdf/pdf_muscadet.modules.php

htdocs/install/mysql/migration/3.3.0-3.4.0.sql

htdocs/install/mysql/tables/llx_commande_extrafields.key.sql

htdocs/install/mysql/tables/llx_commande_extrafields.sql

htdocs/install/mysql/tables/llx_facture_fourn.key.sql

htdocs/install/mysql/tables/llx_printer_ipp.sql

htdocs/install/pgsql/functions/functions.sql