update Piwik to version 2.16 (fixes #91)

www/analytics/core/Updates/2.3.0-rc2.php

@@ -0,0 +1,25 @@
+<?php
+/**
+ * Piwik - free/libre analytics platform
+ *
+ * @link http://piwik.org
+ * @license http://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
+ *
+ */
+namespace Piwik\Updates;
+
+use Piwik\Plugins\Installation\ServerFilesGenerator;
+use Piwik\Updates;
+use Piwik\Updater;
+
+/**
+ */
+class Updates_2_3_0_rc2 extends Updates
+{
+    public function doUpdate(Updater $updater)
+    {
+        ServerFilesGenerator::deleteHtAccessFiles();
+
+        ServerFilesGenerator::createHtAccessFiles();
+    }
+}