- Icon images can be uploaded from the django admin
- Test coverage improved

When Drupal attempts to enroll a user in a closed course, a 406 will
be returned. This causes the marketing site to redirect to the track
selection page for that course, which will then redirect to the
dashboard with a nice message.

ECOM-2317

TNL-3573

ECOM-2678

TNL-3968

Remove redundant and skipped video test.

ECOM-1165

ECOM-1165

Following have been done
1- Change the structure of the course navigation Menu HTML
2- Add some basic styling
3- Add basic JS for html rendering
4- Update tests according to new structure

AC-76

TNL-2693

Add context for navigation states
added find course to dashboard sidebar and included check for context that Will adds in PR
removed nav_course_search context due to design change so replaced with nav_hidden
Removed rwd_header.js and all references as no longer being used.

Wrapped Find Courses in dashboard sidebar in if statement

will fall in 'shard 6'

TNL-1921

TNL-1516

- added entrance exam check on course info
- staff can by pass gating and added tests
- refined gating logic
- changes after rebasing with Asad's branch
- check ENTRANCE_EXAMS feature is enabled
- updated test to reflect new logic
- catering anonymous user in entrance exam permission
- fixed broken tests
- change after feedback on 16/3
- fix for a broken test
- created new entrance_exams module
- fixed quality error and improved test coverage
- put get_required_content back in milestones helper
- Refactored entrance exams logic
- Refactored tabs logic
- Fixed broken unit test
- changes after feedback from dan-f on 3/27
- removed unnecessary user.is_anonymous check
- Addressed PR feedback
- Addressed commit-specific feedback
- Rework guard clauses
- Add coverage for course info case

This change will also move us to bok-choy instead of lettuce for
these scenarios, and re-enable them. See TE-736.

Includes some refactoring of repeated event-checking code as well.