Merge branch 'develop' of git@github.com:Dolibarr/dolibarr.git into develop

htdocs/admin/supplier_invoice.php

htdocs/admin/supplier_order.php

htdocs/comm/propal.php

htdocs/comm/propal/class/propal.class.php

htdocs/commande/card.php

htdocs/commande/class/commande.class.php

htdocs/compta/facture.php

htdocs/compta/facture/class/facture.class.php

htdocs/contrat/card.php

htdocs/core/class/html.form.class.php

htdocs/core/lib/functions.lib.php

htdocs/fourn/class/fournisseur.product.class.php

htdocs/fourn/commande/card.php

htdocs/fourn/facture/card.php

htdocs/install/mysql/migration/3.9.0-4.0.0.sql

htdocs/product/card.php

htdocs/product/fournisseurs.php

htdocs/product/price.php

htdocs/supplier_proposal/card.php

htdocs/supplier_proposal/class/supplier_proposal.class.php