unittests: namespace 'qfq' unified

qfq/exceptions/UserException.php

@@ -28,7 +28,7 @@ class UserException extends \Exception {
     * @return string HTML formatted error string
     */
     public function formatMessage() {
-        $store = \qfq\store\Store::getInstance('');
+        $store = \qfq\Store::getInstance('');
 
         $message = '<table border=1><tr><th>User Exception</th></tr>' .
             '<tr><td>Message</td><td><b>' . $this->getMessage() . '</b></td></tr>' .