TNL-136: Added New page creation animation

SOL-974 make index and remove calls use ES bulk API [WIP]

Support setting email opt-in in calls to the Otto shim

Mark delete certificates test as flaky SOL-1053

XCOM-499

Update lxml to 3.4.4

Update migration dependency.

LMS User menu cleanup

This is a fix for
https://openedx.atlassian.net/browse/TNL-136
added scroll to new page and remove class 'new' on hover to better
indicate that a new page is created.

Styling improvements to openedX search through Find Courses page

ziafazal/SOL-1021: Create Analytics events for certificate actions

TNL-394: Added sanitization of id names

This is a fix for
https://openedx.atlassian.net/browse/TNL-394
escaped all escapable characters in id name strings.

PLAT-324: Custom error message for export course command

* Changed certificate_id to configuration_id
* Fix for acceptance test faiiure
* Add waits to bok choy tests

fix for flaky test

Allow staff to masquerade as a specific user in the LMS (SOL-816)

Eliminate various Pylint violations

Skipped 'print' statement violations, as print() is Py3k syntax.

Mark basket creation and order retrieval endpoints as v0

This migration instantiates the modulestore which is now dependent
the xblock_django database config settings.  So the initial migration
for that has to run before this migration.

TNL-2458 Cache discussion id mapping on course publish

Make render_xblock return a 404 if access check fails

These endpoints are currently for internal use only, but should be versioned nonetheless; Drupal will begin using the basket creation endpoint soon. No functionality has been changed. XCOM-494.

Remove duplicated Teams app setting.

The mobile clients need the request to fail if they don't have
permisssions so that they know to refresh a session token.

JIRA: https://openedx.atlassian.net/browse/MA-1003