The correct value for audit seats is an empty string, not None/null.

LEARNER-2876

LEARNER-2876

The SeatForm implements the logic to create an audit seat for verified
and credit course runs. It also removes audit seats for professional
course runs.

In the longterm, this should be implemented on the UI and exposed to the
end user to avoid future confusion.

LEARNER-2876

ENT-657

The license is now ingested from the Course API on LMS and saved to the Course Run model. This value is in turn exposed on this service's course run and search API endpoints.

LEARNER-2791

The tests now use py.test.

Failure to download an image for one course should not stop execution of downloads for other courses. Exception handling is now in place to ensure we do not prematurely exit the program.

LEARNER-2463

The Publisher permissions are unnecessarily burdensome in development since they require manual intervention for every course and organization. This switch allows them to be disabled.

LEARNER-2458

LEARNER-2458

If a course has an image on the image field, that image's URL will be
used in the API response. Course runs now use the related course's image.

LEARNER-2751

This command downloads images from the course's card_image_url field
value, and stores them in the image field.

LEARNER-2463

This separation allows us to assess how much time is consumed by each operation in our build. This data can be used to tune the build and seek out areas for improvement.

Remove video_translation_languages field from course_run object. The field name is not accurate and the data is not being used

This change ensures that self-paced course runs are marked appropriately in Studio.

EDUCATOR-1464

The upgrade deadline published to external services now follows edX business logic. Only verified seats have an upgrade deadline. If no value is set, one is calculated based on the course run's end date.

EDUCATOR-1465

LEARNER-2463

If a course has no associated image, a warning will be logged rather than attempting to access a non-existent file.

EDUCATOR-1462

All courses must have their own associated image. Images are no longer pulled from the URL associated with the published course run.

EDUCATOR-1462

This ensures we don't have to wait for a data refresh to pull data from
the E-Commerce Service.

LEARNER-2719

LEARNER-2721

LEARNER-2720