add piwik installation

www/analytics/core/Updates/2.0-b10.php

@@ -0,0 +1,23 @@
+<?php
+/**
+ * Piwik - Open source web analytics
+ *
+ * @link http://piwik.org
+ * @license http://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
+ *
+ */
+
+namespace Piwik\Updates;
+
+use Piwik\Updates;
+
+/**
+ */
+class Updates_2_0_b10 extends Updates
+{
+    static function update()
+    {
+        parent::deletePluginFromConfigFile('Referers');
+        parent::deletePluginFromConfigFile('PDFReports');
+    }
+}