[ci skip] Update ellislab.com links to https too
diff --git a/system/libraries/Calendar.php b/system/libraries/Calendar.php
index 2a42b58..1f8ef81 100644
--- a/system/libraries/Calendar.php
+++ b/system/libraries/Calendar.php
@@ -28,7 +28,7 @@
*
* @package CodeIgniter
* @author EllisLab Dev Team
- * @copyright Copyright (c) 2008 - 2014, EllisLab, Inc. (http://ellislab.com/)
+ * @copyright Copyright (c) 2008 - 2014, EllisLab, Inc. (https://ellislab.com/)
* @copyright Copyright (c) 2014 - 2016, British Columbia Institute of Technology (http://bcit.ca/)
* @license http://opensource.org/licenses/MIT MIT License
* @link https://codeigniter.com