avoid database error when recording task exception

Fix pep8 violation.

Add classes to cohort selector element group

Platform API Doc Update

Adding ARIA label to selected conversation

skip flaky test - test_immediate_verification_enrollment

Fix csrf error on studio login

Add cov_args and extra_args to python unittest commands

Update UI text for enrollment codes

ECOM-1007

fix settings page not handling unicode (TNL-1237)

Tyhe sign in form should not be submitted before the submit event is
ready to be intercepted. This can occur if the user clicks too fast on
the sign in button.

Context: We have witnessed multiple, seemingly random "CSRF verification
failed" errors while signing in (with valid ID) to the Studio.

Explanation: The login form does not initially include a CSRF field.
The CSRF header of the request is appended to the studio login request
headers by intercepting the form validation. This intercept is performed
by the login.js script. Unfortunately, the login.js script is loaded
pretty late (at the end of the template). So if the login form is
validated sufficiently fast, the login.js script has no time to load and
append the X-CSRFToken header to the request.

Proposed solution: the CSRF token is already passed to the template via
the login view, so we just add a hidden field to the login form to
include the csrf token.

Make entrance exam field non-editable

Decoupled entrance exam scoring from milestone fulfillment

Courseware search

Revert "Add RequireJS and RequireJS Optimizer configuration to the LMS"

This reverts commit 66b949b7.

modulestore, in order to separate serializable block data from
out-of-band, non-saved, temporary metadata.

Eliminate the deepcopy causing performance problems with import/export.

https://openedx.atlassian.net/browse/PLAT-416

This fixes two bugs:
1. All statuses were listed as "Unknown"
2. Non-ASCII characters in a header column translation resulted in a 500

Retriggring Jenkins build

Bok Choy test now passes

This reverts commit b8184d18.

make course requirement as link

Added 'is_entrance_exam' to FILTERED_LIST plus a new bokchoy test