Changes
- Add config options
notifier_startup_grace_secsanddefer_startup_notificationsto better support YAML notify groups. - Add
summary_notifierconfig option so you can use separate notifiers for summary messages (eg snooze ending) - add unack service call
- Make it an error to declare two alerts of same name
- Clean up messaging around unhandled exceptions and summary notifications
- Code refactor to make future changes easier
- Update docs