* Refactor notifications to allow easier plugins
* Notification refactoring
* Formatting
* Move news to NewsService; cleanup of events
* More refactoring; added send email out for news item and the template
* Formatting
* Formatting
* Account for empty ICAO; added tests
* Fix null returns
* Fix typo in volume units display
* Add version field for bug report template
* Some more changes to the bug report template
* Switch to semver format
* Rewrite new version check to use Github Releases and cron
* Styling
* Remove v from in front of version
* New version check test fix
* Uncomment test case