* Make dataengines work fully standalone
* Fix panel icon sizing
There's still an issue with the popup size when resizing the vertical panel smaller so it collapses
* Implement keyboard navigation for the list with focus hacks...
Delete key closes notifications or groups, Arrow left/right expand/collapse groups, Enter invokes default action, if any
* Fix DND times that are supposed to be hidden showing
ModelContextMenu doesn't respect "visible" property
* Move "Notifications" header to ListView header so it scrolls away and leaves more room for the notifications in systray popup
* Fix finished jobs in history showing as failed when app is closed
* Don't remember apps that spawned jobs, only for notifications
* Use CriticalNotification window type (patches pending)
* Ship some more default rules in plasmanotifyrc
* Improved do not disturb menu (add "for 4 hours" and "until disabled")
* Expand unread notifications by default, overall improved expansion/collapse handling
* Show unread count in panel and reset when plasmoid is closed again
* Move notification sanitizer and its test from dataengine to lib
* Load pixmaps into model also for files and limit their physical size
* Enforce maximum limit for notifications (1000...)