Aa-fleetfinder

Removed

- Django 2 support

Fixed

- Permission to create fleets

Changed

- Datatables in fleet details view set up properly
- UI in fleet details view re-done
- Fleet details are now refreshed every 15 seconds via Datatables reload

App forked from [Dreadbomb/aa-fleet](https://github.com/Dreadbomb/aa-fleet)

Fixed

- HTML errors
- Datatable errors
- Import order
- Code issues cleaned up
- General model and permissions

Changed

- Fleet commander transformed into EveCharacter model
- Automatic page reload in fleet details view deactivated (was causing troubles)
- Datatable for dashboard configured properly
- Migrations reset