* Refactor and add importer to Installer module #443
* Refactor for finances to use in import
* Import groups into roles
* Formatting
* Formatting
* Add interface in installer for import
* Notes about importing
* Check for installer folder
* Formatting
* Fix pirep->user mapping
* Unused import
* Formatting
* 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
* Allow file uploads for subfleet
* Allow URL to be used for a download
* Remove old FileUploadRequest
* Move file removal logic to service layer
* Remove unused import
* Remove unused packages
* 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
