initial sabre upgrade (needs lots of work - to wit: authentication, redo the browser interface, and rework event export/import)

vendor/sabre/xml/lib/ParseException.php

@@ -0,0 +1,17 @@
+<?php
+
+namespace Sabre\Xml;
+
+use
+    Exception;
+
+/**
+ * This is a base exception for any exception related to parsing xml files.
+ *
+ * @copyright Copyright (C) 2009-2015 fruux GmbH (https://fruux.com/).
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class ParseException extends Exception {
+
+}