Merge branch 'stable-3.1'

Marius Burkard

2016-05-04 c3189ce6c7301c3ec17878fd3918f31d0d3cb18a

 interface/web/client/lib/lang/es_client_message.lng

@@ -17,4 +17,4 @@
$wb['subject_invalid_error'] = 'El asunto está vacío.';
$wb['subject_txt'] = 'Asunto';
$wb['variables_txt'] = 'Variables:';
?>
?>