Moved cache drivers outside core to extensions (plugins)

plugins/cache-redis/Predis/Protocol/ProtocolException.php

@@ -0,0 +1,24 @@
+<?php
+
+/*
+ * This file is part of the Predis package.
+ *
+ * (c) Daniele Alessandri <suppakilla@gmail.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Predis\Protocol;
+
+use Predis\CommunicationException;
+
+/**
+ * Exception used to indentify errors encountered while parsing the Redis wire
+ * protocol.
+ *
+ * @author Daniele Alessandri <suppakilla@gmail.com>
+ */
+class ProtocolException extends CommunicationException
+{
+}