Studio-frontend in-context image selection modal

permit staff role to rescore, override and delete problem scores for individual learners

Fix styling of navtabs.

Send email to learners to inform verification status

Support Team need to handle bulk of tickets every month about
the verification status of learners.To avoid it,suitable changes
have done to send verification email to the learner.

LEARNER-1487

add note on for logged out users on support form

Merge pull request #17876 from edx/testeng/bokchoy_auto_cache_update_cffbf0280304e9c331e8ea1fe87f020ea6a3a329

Bokchoy db cache update

Open edit image modal via a custom signal

Send img tag attributes in open signal

Send natural image dimensions if no attr specified

Add new modal button in addition to old button

Also load built CSS when waffle switch on

Swap out TinyMCE toolbar button on waffle switch

Pass LANGUAGE_CODE from Django to template to studio-frontend

Define request.LANGUAGE_CODE in test_container_page.py

Exclude the default site from UserAttribute 'created_on_site'

This table is getting slammed and causing deadlocks, since 90% of it
is just this one setting on the default site we're going to stop saving
those and make it a default assumption going forward.

Upgrade edx-enterprise package to 0.67.1.

Merge pull request #17862 from edx/testeng/bokchoy_auto_cache_update_6e2e48398da9f11a3fe7ac599d6110034865b901

Bokchoy db cache update

Revert "Logging: Error getting the course from modulestore"

Border Appearing on wiki and Progress page.

https://github.com/edx/edx-enterprise/compare/0.67.0...0.67.1

Revert "Use get or create rather than create"

Merge pull request #17869 from edx/waheed/LEARNER-1220-fix-enabling-debug-allows-api-access-without-authentication

Fix enabling debug allows api access without authentication.

LEARNER-1220

LEARNER-3783

Fix due date display format according to set in advanced settings.

studio-frontend 1.6.3

Create API endpoint to retire cs_comments_service users

Upgrade Django to 1.11.12

Bump bok-choy to v0.7.2

A generic css rule like this ".container>div" is present on the wiki page.
Due to which these borders were showing around the footer on  those pages.
added a fix for that in this PR.

LEARNER-4858

Add some common functionality for retiring users

Fixed error: ImportError: No module named notmigrations

LEARNER-4403: Update TOS and Privacy Policy field on registration form for GDPR.

- Methods for getting hashed retired users and usernames
- A DRF permission for retiring users

Reverting celery task kwarg name.