Added PHP 7 check in installer and updater.

Till Brehm

2016-04-22 ebd0e986ed11f2a34fb58cdd33efbfab192083ad

 interface/web/mailuser/lib/lang/cz_index.lng

@@ -11,3 +11,4 @@
$wb['none_txt'] = 'Nenastaveno';
?>