detect the ubuntu version based on /etc/os-release

Uwe Merbeth

2016-05-09 f5daecadf5846ff0b2d512e6a1a47f17342fe02b

 interface/web/admin/lib/lang/cz_directive_snippets.lng

@@ -9,4 +9,3 @@
$wb['variables_txt'] = 'Proměnné';
$wb['customer_viewable_txt'] = 'Customer viewable';
?>