Use strings instead of tuples as keys in SessionKeyValueStore.

Making the django main template navigation course aware.

Course admin should be able to de-admin dicussion admins

Some Django packages expect only strings as keys in the user session,
and it is also a recommended practice in the Django manual.

As a global staff or course staff once you added yourself
in the discussion admins you cannot revoke it back unless
you remove yourself as course staff. Any of the course staff
member should be able to remove others from discussion admins
whether they are course staff or not.

TNL-315

Fixes check for Image Annotation Tool to include ID from image server and fix scrolling bug

Alasdair/header footer accessibility updates

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

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

 - PR fixes

 - Reverted Fix

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

Don't set 'download_video' field on importing video from xml until expli...

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

Fixed transcript not follow with video on seek.

TNL-235

Properly Setting ANALYTICS_DASHBOARD_NAME for AWS

Update translations (autogenerated message)

Conflicts:
	common/lib/xmodule/xmodule/video_module/video_module.py
	requirements/edx/github.txt

Improvements to byte range handling in StaticContentServer.

If matlab grader sent unparsable response, show error message.

keep large answers from appearing (TNL-441)

be sure to constrain the select to the course_id that is being delete

fix 404s when students access group-less threads in cohorted topics

Puts course listings in a sane order

Change some text when in professional ed flow

PLAT-104

PLAT-104

This commit makes the following changes:
1. If there are syntactic errors in the Range header, it is ignored and
the full content is returned. This conforms to the spec.
2. In case of multiple ranges in the header, the full content is returned.
This behavior differs from the spec which says that a multipart response
should be returned.

PLAT-104

Note that the features in this release are opt-in, and course and video
behavior will remain the same unless a course explicitly opts in.

Major pieces of functionality with this commit:

Allows the listing of a user's enrollments, course videos, and updates. In
order to make a course available for mobile use, course staff must explicitly
set the Course Advanced Setting "Mobile Course Available" to true. Course staff
will always see their own courses through the Mobile API regardless of this
setting, but students will only be allowed to see a course through the Mobile
API if this setting is set to "true". By default, a Course will *not* be
available for mobile use.

This is a Django app for video resource management. It is completely optional,
and is intended to allow video and operations teams to create new encodings of
videos (e.g. low res for mobile) and change CDNs without having to edit course
data directly. Course teams can now use a "EdX Video ID" setting for Videos,
which will leverage VAL. Video units that do not fill in an "EdX Video ID" will
behave exactly as they always have.

* The Mobile API is enabled with the ENABLE_MOBILE_REST_API feature flag.
* VAL is enabled with the ENABLE_VIDEO_ABSTRACTION_LAYER_API feature flag.
* VAL and the Mobile API both require ENABLE_OAUTH2_PROVIDER).
* The Mobile API is a read-only API, but VAL requires database migrations.
* Applications that make use of either the Mobile API or VAL must be registered
  with the OAuth2 provider app in Django Admin.