v1.15

Changes

• Add ack_required alert config field. If it is truthy, then unacked alerts will continue to get notifications until acked, even if they have stopped firing. Works with event alerts as well. Affects display of the alert in the Overview card.
• Add ack_reminder_message to allow customizing the notification message sent when ack_required is used.
• Add ack_reminders_only config field. When set, even after a condition alert is acked, you will still get a notification when it stops firing. (default behavior is that acking an alert prevents the done notification).
• Add events that are fired when alerts are acked & unacked
• reminder_frequency_mins now may be set for event alerts that use ack_required to control notification frequency.
• Improve error message when forget outer quotes on data template strings
• data field templates now have access to alert_entity_id, alert_domain and alert_name variables. This should make it easier on iOS companion app to implement an "Ack" button in notifications and pass through the alert entity id to the event handler.