update Piwik to version 2.16 (fixes #91)

www/analytics/plugins/Provider/Controller.php

@@ -1,6 +1,6 @@
 <?php
 /**
- * Piwik - Open source web analytics
+ * Piwik - free/libre analytics platform
  *
  * @link http://piwik.org
  * @license http://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
@@ -8,20 +8,10 @@
  */
 namespace Piwik\Plugins\Provider;
 
-use Piwik\ViewDataTable\Factory;
-
 /**
  *
  */
 class Controller extends \Piwik\Plugin\Controller
 {
-    /**
-     * Provider
-     * @return string|void
-     */
-    public function getProvider()
-    {
-        return $this->renderReport(__FUNCTION__);
-    }
 }