fixed broken test
changes based on feedback on 6/24
fixed broken unit test after feedback changes
added more checks and updated tests
fixed broken bok choy test
Fixed pylint quality error
trying to fix pylint quality error
some optimisations
refactored code and added created event
added test to make sure generate event is emitted
changes based on feedback on 6/11
added certificate web page and tests
fixed quality violations
If certificates cannot be added to the queue,
mark the certificate status as 'error' so that
it can be re-run by management commands.
Clean up logging and return values.
Add the ability to generate "example" certificates to
test that certificate generation is working correctly for a course.
Add the ability to enable/disable self-generated certificates
on a per-course basis.