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

Uwe Merbeth

2016-05-09 f5daecadf5846ff0b2d512e6a1a47f17342fe02b

 interface/web/tools/lib/lang/cz_usersettings.lng

@@ -10,5 +10,3 @@
$wb['password_mismatch_txt'] = 'Hesla se neshodují.';
$wb['password_match_txt'] = 'Hesla se shodují.';
?>