Image Annotation Tool: Fixes _isOpenSeaDragon function
Annotation Tools: Pylint Fix left over from previous PR
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-171: Change topic of a previously posted post.