revert remove changpackage

kerioEmail.php

@@ -63,6 +63,15 @@ function KerioEmail_TerminateAccount(array $params)
     return $appContext->runApp(__FUNCTION__, $params);
 }
 
+function KerioEmail_ChangePackage(array $params)
+{
+    require_once __DIR__ . DIRECTORY_SEPARATOR . 'core' . DIRECTORY_SEPARATOR . 'App' . DIRECTORY_SEPARATOR . 'AppContext.php';
+
+    $appContext = new AppContext();    
+    
+    return $appContext->runApp(__FUNCTION__, $params);
+}
+
 function KerioEmail_TestConnection(array $params)
 {
     require_once __DIR__ . DIRECTORY_SEPARATOR . 'core' . DIRECTORY_SEPARATOR . 'App' . DIRECTORY_SEPARATOR . 'AppContext.php';