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

.editorconfig

htdocs/admin/facture.php

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

htdocs/core/boxes/box_factures_imp.php

htdocs/core/lib/project.lib.php

htdocs/install/mysql/data/llx_accounting.sql

htdocs/install/mysql/data/llx_c_tva.sql

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

htdocs/install/mysql/tables/llx_facture.sql

htdocs/langs/en_US/bills.lang

htdocs/langs/en_US/receiptprinter.lang