Support for separate Journals frontend app

Clear cache after tests that create DarkLangConfig objects

[ENT-769] - Unlink learner from Enterprise Customer 

bump edx-sga to 0.8.3

EDUCATOR-3417: Remove flaky video test.

EDUCATOR-3418: Remove flaky completion test.

* test_render_xblock_publish_completion_is_sent_on_view

* test_video_language_menu_working

EDUCATOR-3409: Remove flaky completion test.

* test_courseware_publish_completion_is_sent_on_view

Log conditional xblock fragment resource loading

Mergeback PR from private to public.

Update recommender-xblock version number

When sending a program cert to Credentials, also send along a
calculated visible_date along with it.

LEARNER-6262

EDUCATOR-3385 fix attribute error in discussion email notification

EDUCATOR-2714

Reveal industry pathways in program details sidebar

Fix entitlement expiring on switching session.

LEARNER-6313

Merge release back to master

Change access pattern for role/permissions retrieval to address Aurora query optimizer.