Update MysqliDb.php

MysqliDb.php

@@ -7,6 +7,7 @@
  * @author    Jeffery Way <jeffrey@jeffrey-way.com>
  * @author    Josh Campbell <jcampbell@ajillion.com>
  * @author    Alexander V. Butenko <a.butenka@gmail.com>
+ * @author    Sebastian Wehrli <sebastian.wehrli@stunex.ch>
  * @copyright Copyright (c) 2010
  * @license   http://opensource.org/licenses/gpl-3.0.html GNU Public License
  * @version   2.0