v1.6

• Support for Moodle v3.5 or above.
• Migrated to new Moodle Task API.

v1.5.1

• Fixed a bug where group reminders are not assigned when the event instance is empty

MOODLE_REMINDERS_24

+ now works in Moodle 2.4.*
+ fixed bug when sending reminders based on groups
+ group reminder message content has been made richer by including course and activity details.
+ added a setting to define the prefix for messages being sent, and 
    added another setting to define to show/hide group name in the group reminder message.
+ cron cycle interval for this plugin has been reduced from 1-hour to 15-minutes.