Ladok3

Adds a note to `login` command help that one needs the `keyrings.alt` package
on WSL (and possibly Windows).

**Full Changelog**: https://github.com/dbosk/ladok3/compare/v3.8...v3.9

- Improves error messages
- Adds -r flag to student to command to include results in course listings

**Full Changelog**: https://github.com/dbosk/ladok3/compare/v3.7...v3.8

What's Changed
* Adds suspensions attribute for students by dbosk in https://github.com/dbosk/ladok3/pull/66
* Bugfix: Handle missing omfattning and utbildningstillfalleskod by dbosk in https://github.com/dbosk/ladok3/pull/67
* Add results to student command output by dbosk in https://github.com/dbosk/ladok3/pull/68


**Full Changelog**: https://github.com/dbosk/ladok3/compare/v3.6...v3.7

Fixes a bug in the student command.

**Full Changelog**: https://github.com/dbosk/ladok3/compare/v3.5...v3.6

Bugfix: partial results in data command

**Full Changelog**: https://github.com/dbosk/ladok3/compare/v3.4...v3.5

Fixes 65: CLI cache didn't work due to bug in pickling process. Fixed by
updating weblogin version.

**Full Changelog**: https://github.com/dbosk/ladok3/compare/v3.3...v3.4