TNL-716: Add possibility for notes creation via keyboard.

Include middleware database queries in Django debug toolbar

Calculator UI difficulit to access

Flakiness fix for cohort group selection TNL-1479

CSS Background Image used for important link

Awais786/ecom 1046 add cert btn

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

Skip intermittently failing test TE-572

Fix Pylint violations (easy)

Refactor registration endpoint and return field-specific detail in errors

Stop hitting the database when no courses are blocked.

skip intemittently failing test TE-745

Skip intermittently failing test_course_publish_signal_firing PLAT-449

Disable flakily failing JS tests TNL-559

skip paver bokchoy_coverage in jenkins

[TNL-439]: Fix flaky jasmine tests.

Also, make registration API CSRF exempt

This also changes the registration API contract to use the course_id
parameter for analytics instead of an extra analytics parameter.

These tests cover validation of parameters and saving of data to
UserProfile objects.

adds and alt attribute to the loading/spinner graphic

CSS background image was used for the home icon at upper right corner
so when user enter high contrast mode or disable bakground image it
disapear so moved it to DOM element

TNL-1382

TNL 713: Added accessibility plugin.

TNL-454: Fix flaky bok-choy tests.

Content Groups Usage and Delete functionality.