Add iCal functionality

plugins/zapcal/zapcallib.php

@@ -0,0 +1,28 @@
+<?php
+/**
+ * zapcallib.php
+ *
+ * @package	ZapCalLib
+ * @author	Dan Cogliano <http://zcontent.net>
+ * @copyright   Copyright (C) 2006 - 2017 by Dan Cogliano
+ * @license     GNU GPLv3 <http://www.gnu.org/licenses/gpl.html>
+ * @link	http://icalendar.org/php-library.html
+ */
+
+/**
+ * used by ZapCalLib
+ * @var integer
+ */
+define('_ZAPCAL',1);
+
+if(!defined('_ZAPCAL_BASE'))
+{
+	/**
+	 * the base folder of the library
+	 * @var string
+	 */
+	define('_ZAPCAL_BASE',__DIR__);
+}
+
+require_once(_ZAPCAL_BASE . '/includes/framework.php');
+