update Piwik to version 2.16 (fixes #91)

www/analytics/plugins/Monolog/Handler/EchoHandler.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\Handler;
+
+use Monolog\Handler\AbstractProcessingHandler;
+
+/**
+ * Simply echos all messages.
+ */
+class EchoHandler extends AbstractProcessingHandler
+{
+    protected function write(array $record)
+    {
+        $message = $record['level_name'] . ': ' . $record['message'];
+
+        echo $message . "\n";
+    }
+}