update Piwik to version 2.16 (fixes #91)

www/analytics/plugins/Monolog/Processor/TokenProcessor.php

@@ -0,0 +1,24 @@
+<?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\Plugins\Monolog\Processor;
+
+/**
+ * Removes any token_auth that might appear in the logs.
+ *
+ * Ideally the token_auth should never be logged, but...
+ */
+class TokenProcessor
+{
+    public function __invoke(array $record)
+    {
+        $record['message'] = preg_replace('/token_auth=[0-9a-h]+/', 'token_auth=removed', $record['message']);
+
+        return $record;
+    }
+}