Merge remote-tracking branch 'origin/3.7' into develop

ChangeLog

htdocs/admin/propal.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/class/facture.class.php

htdocs/compta/index.php

htdocs/contrat/class/contrat.class.php

htdocs/core/boxes/box_graph_invoices_permonth.php

htdocs/core/boxes/box_graph_invoices_supplier_permonth.php

htdocs/core/boxes/box_graph_orders_permonth.php

htdocs/core/boxes/box_graph_orders_supplier_permonth.php

htdocs/core/boxes/box_graph_propales_permonth.php

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

htdocs/core/lib/functions.lib.php

htdocs/core/lib/pdf.lib.php

htdocs/core/modules/commande/doc/pdf_einstein.modules.php

htdocs/core/modules/commande/doc/pdf_proforma.modules.php

htdocs/core/modules/contract/doc/pdf_strato.modules.php