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 a management comand to regenerate certificates with
status 'error', optionally restricted to a subset
of courses.

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.

Add client-side analytics event for LinkedIn Add to Profile button click.

Add management command for generating certs for testing.

Update styling of the certificate messages.

ECOM-1046 minor change in code. rename file name.

Some tests test were using `CourseFactory` buy not deriving from
`ModuleStoreTestCase`, introducing a course leaks that broke other
unrelated tests.

LMS-6631

LMS-2920

Squashing commits

Transition to Oqaque Keys

Bug fixes

Fixing regenerate_user

Fixes LMS-2830

[LMS-2757]

sorted the output, easier to read

Add is_active filter to only generate for students enrolled

Adding back total_enrollment

Removing active filter

Certs will generate for all users in the course, not just those "active"

Typo

Renaming headings to make more sense

Renaming variables to match headings