add piwik installation

www/analytics/js/index.php

@@ -0,0 +1,37 @@
+<?php
+/**
+ * Piwik - Open source web analytics
+ *
+ * @link http://piwik.org
+ * @license http://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
+ */
+use Piwik\ProxyHttp;
+
+/**
+ * Tracker proxy
+ */
+if($_SERVER['REQUEST_METHOD'] == 'POST' || !empty($_SERVER['QUERY_STRING'])) {
+	include '../piwik.php';
+	exit;
+}
+
+/**
+ * piwik.js proxy
+ *
+ * @see core/Piwik.php
+ */
+define('PIWIK_INCLUDE_PATH', '..');
+define('PIWIK_DOCUMENT_ROOT', '..');
+define('PIWIK_USER_PATH', '..');
+
+require_once PIWIK_INCLUDE_PATH . '/libs/upgradephp/upgrade.php';
+require_once PIWIK_INCLUDE_PATH . '/core/Loader.php';
+
+$file = '../piwik.js';
+
+
+$daysExpireFarFuture = 10;
+
+ProxyHttp::serverStaticFile($file, "application/javascript; charset=UTF-8", $daysExpireFarFuture);
+
+exit;