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.

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

Remove Studio JS template loader

refactoring of platform to xblock 0.3 w/ refactoring of inheritance in the platform to a consistent representation.

Include mixins in advanced component class loading and preview modules