Update to nG6_utils.php

The path to application.properties has been fixed

Issue #216

ui/nG6/Classes/Controller/class.tx_nG6_utils.php

@@ -325,7 +325,7 @@ $template_mail.='<p>Yours sincerely</p>
     }
     
     static function get_config_content(){
-    	$config_file_path = __DIR__."/../../../application.properties";
+    	$config_file_path = __DIR__."/../../../../application.properties";
     	$config_file_content = file_get_contents($config_file_path);
     	
     	return($config_file_content);