Added PHP 7 check in installer and updater.

Till Brehm

2016-04-22 ebd0e986ed11f2a34fb58cdd33efbfab192083ad

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

@@ -7,6 +7,8 @@
$wb["file_server_txt"] = 'Fileserver';
$wb["db_server_txt"] = 'DB-Server';
$wb["vserver_server_txt"] = 'VServer-Server';
$wb["proxy_server_txt"] = 'Proxy-Server';
$wb["firewall_server_txt"] = 'Firewall-Server';
$wb["active_txt"] = 'Active';
$wb["mirror_server_id_txt"] = 'Is mirror of Server';
$wb["- None -"] = '- None -';