Check that email subtasks are known to the InstructorTask before executing.

Use HTTP header for comments service auth

Add roles and labels to the dialogs on the dashboard.

Pass student grade label to certification process

some layout tweaks to the verification choose your track page

Fix video unit test

LMS-1310

LTI: Fix import/export.

fix video module issue with require.js

Move index code into index.js.

Added two states to HD control: HD off - HD on

Wait for non-blank link in course-overview test

and disable tests that fail for unrelated reasons

Added back on hover CC button functionality.

Fixing falling test. Added fix for RequireJS & XModule loader video race condition.
Removed unnecessary comments from SCSS and JS files.
Added entry to Change Log.

Add a11y to the calculator