Don't set 'download_video' field on importing video from xml until explicitly set
TNL-324
update video module to always set download_video field on export
Image Annotation Tool: Fixes _isOpenSeaDragon function
Annotation Tools: Pylint Fix left over from previous PR
Don't allow commenting while the thread is closed

When someone closes thread there is still option to add
comment which cause error when submitted. User shouldn't
be able to comment while the thread is closed.

TNL-150
Merge pull request #5142 from mlkwaqas/waqas/tnl150-stop-comment--on-closed-thread

Don't allow commenting while the thread is closed
Merge pull request #5240 from edx/zub/bugfix/tnl-324-downloadvideoexportimport

Don't set 'download_video' field on importing video from xml until expli...
New post should show category/subcategory breadcrumb when created.

When the new post is created under the subcategory and it appear
after the creation, it doesn't have the link of category/subcategory
after thread body. When we reload the page the link appears. Link
should appear after creation.

TNL-404
Merge pull request #5279 from mlkwaqas/waqas/tnl404-new-post-hidden-breadcrumb

New post should show category/subcategory breadcrumb when created.
Annotation Tools: Non-critical highlights == undefined fixes

i.e. they should be fixed but don’t cause the whole thing to break.

 - PR fixes

 - Reverted Fix
Disabled student view if course is not yet released for students.
LMS-6617

Fixed wiki merge url regex.
TNL-413

ECOM-345 changed any lists that could display with only 1 item to divs

ECOM-345 Added aria tags for header

ECOM-364 Accessibility update for footer

added my name to the authors file

Addressing feedback from code review - removing unnecessary element references in selectors

Updated header aria-label to be main
Merge pull request #5333 from edx/alasdair/header-footer-accessibility-updates

Alasdair/header footer accessibility updates
Merge pull request #5305 from lduarte1991/lduarte-harvardx-pr28

Fixes check for Image Annotation Tool to include ID from image server and fix scrolling bug
TNL-272: cms-modules.js is loaded twice on unit edit page.