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

CONTRIBUTING.md

htdocs/adherents/class/adherent.class.php

htdocs/adherents/note.php

htdocs/comm/action/class/ical.class.php

htdocs/comm/propal.php

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

htdocs/comm/propal/note.php

htdocs/commande/class/commande.class.php

htdocs/compta/prelevement/class/ligneprelevement.class.php

htdocs/core/class/CMailFile.class.php

htdocs/core/class/commoninvoice.class.php

htdocs/core/class/commonobject.class.php

htdocs/core/class/dolgraph.class.php

htdocs/core/class/dolprintipp.class.php

htdocs/core/class/infobox.class.php

htdocs/core/class/ldap.class.php

htdocs/core/db/Database.interface.php

htdocs/core/db/DoliDB.class.php

htdocs/core/db/sqlite.class.php

htdocs/core/lib/barcode.lib.php