Miscelaneous debug on barcode features.

htdocs/admin/barcode.php

htdocs/barcode/codeinit.php

htdocs/commande/contact.php

htdocs/core/menus/standard/eldy.lib.php

htdocs/core/modules/DolibarrModules.class.php

htdocs/cron/card.php

htdocs/cron/info.php

htdocs/install/upgrade2.php

htdocs/langs/en_US/admin.lang

htdocs/langs/en_US/cron.lang

htdocs/langs/en_US/errors.lang