fix remote database add

Author: Balázs Kelemen

remoting_client/examples/sites_database_add.php

@@ -19,7 +19,7 @@
 	$params = array(
 		'server_id' => 1,
 		'type' => 'mysql',
-		'website_id' => 1,
+		'parent_domain_id' => 1,
 		'database_name' => 'db_name2',
 		'database_user_id' => '1',
 		'database_ro_user_id' => '0',