1.6

• Introduce bulk deletion of cron events. Yay!
• Show the schedule name instead of the schedule interval next to each event.
• Add core's new delete_expired_transients event to the list of core events.
• Don't allow custom cron schedules to be deleted if they're in use.
• Add links between the Events and Schedules admin screens.
• Add syntax highlighting to the PHP code editor for a PHP cron event.
• Styling fixes for events with many arguments or long arguments.
• Improvements to help text.
• Remove usage of create_function().
• Fix some translator comments, improve i18n, improve coding standards.