Support 1.6 - 1.6.3

incl/util.php

@@ -48,6 +48,9 @@ function exitWithMessage($message, $encrypt = true) {
     }
     exit;
 }
+function getClientVersion() {
+    return $_SERVER['HTTP_CLIENTVERSION'];
+}
 
 function isLatestVersion($version) {
     global $latestVersion;