Add mitxmako.middleware to fix workers

Fix verify progress status

Clean up - Add chosen price to the choose mode page

Check flash video permissions before enabling next step

Jkarni/fix/textbook upload

Small UI fixes

Enable display of course org, num in receipt page.

Alex/add lti to rc

LTI blade allows to include LTI components to courses.
Python integration, Jasmine and acceptance tests are included.

Clean up text of Order Confirmation E-mail.

User verification / validated certificates feature

LMS: General Disabled Link/Button State Styling

Default empty course_name just to unbreak the test. Need to actually extract out verification-specifics from the receipt templates, but design is working on them right now.

If mitxmako.middleware has ever been imported, then render_to_string
works correctly (which is why we didn't see this in the rest of
edx-platform). However, if it hasn't (like in a celery worker), then
using mitxmako.middleware errors out.

[LMS-1085]

Conflicts:
	lms/envs/common.py

Add support for multiple file uploads

also even when we have a marketing site, we still need a course image fo...

Staff information about duplicate ORA submissions

Release

fix edit tab bug and add unit test

Add datadog tracking for bulk email