through to the REST API:

* created_date: date/time the certificate was issued.
* is_passing: boolean flag denoting whether the certificate status is
  passing or non-passing.

And adds JwtAuthentication, so the Certificates REST API can be easily
accessed from Enterprise management commands.

edx-ora2 and edx-submissions updates

Merge release back to master

Andya/new bookmarks page

LEARNER-39

- Rename CourseOutlinePage to StudioCourseOutlinePage in lms tests.
- Introduce CourseHomePage with outline child.
- Add a11y, breadcrumbs, and waffle.

remove scss rule that overrides discussion paragraph margins (TNL-6231)

Convert course bookmarks into a separate page

LEARNER-39

Implement the new unified course tab with a separate outline page

An indicator of the Open edX release line, and help tests adapted to same.

- Rename CourseOutlinePage to StudioCourseOutlinePage in lms tests.
- Introduce CourseHomePage with outline child.
- Add a11y, breadcrumbs, and waffle.