Merge remote-tracking branch 'Upstream/develop' into 5.0-p21

htdocs/accountancy/admin/card.php

htdocs/accountancy/admin/export.php

htdocs/accountancy/admin/fiscalyear.php

htdocs/accountancy/admin/index.php

htdocs/accountancy/admin/journal.php

htdocs/accountancy/admin/productaccount.php

htdocs/accountancy/bookkeeping/card.php

htdocs/accountancy/bookkeeping/list.php

htdocs/accountancy/bookkeeping/listbyaccount.php

htdocs/accountancy/bookkeeping/listbyyear.php

htdocs/accountancy/class/bookkeeping.class.php

htdocs/accountancy/class/html.formventilation.class.php

htdocs/accountancy/customer/card.php

htdocs/accountancy/customer/index.php

htdocs/accountancy/customer/lines.php

htdocs/accountancy/customer/list.php

htdocs/accountancy/index.php

htdocs/accountancy/journal/bankjournal.php

htdocs/accountancy/journal/purchasesjournal.php

htdocs/accountancy/journal/sellsjournal.php