* Removed support for PHP4 in `customFieldsInterface.php`.
* Fixed Wordpress version check for deciding which image to use for TinyMCE button.
* Fixed "Strict Standards" warning in PHP 5.4 in `__getNextWeek()`

git-svn-id: https://plugins.svn.wordpress.org/timed-content/trunk@835759 b8457f37-d9ea-0310-8a92-e5e31aec5664
Added Upgrade Notice for v. 2.1.3

git-svn-id: https://plugins.svn.wordpress.org/timed-content/trunk@835763 b8457f37-d9ea-0310-8a92-e5e31aec5664