Fix for bug Blades/BLD-152

Script for granting existing instructors creator access.

Jnater/courseware tests

This allows the build to pass in Jenkins

This ensures that `rake test` will clean the report directories
*before* running the JS tests.

Remove pointless addition tests

save the cert record immediately after we set the status

There was a potential though unlikely race condition because the .save()
was after the certificate request was put on the queue.

Now calling .save() immediately after we update the
cert.

Fix: deleting JS test reports in Jenkins

Conflicts:
	lms/djangoapps/courseware/tests/tests.py
	lms/djangoapps/instructor/tests/test_enrollment.py

Make the UrlResetMixin load the urlconf after resetting it, and fix the ...

This allows the build to pass in Jenkins

Catch InvalidLocationError

Make the UrlResetMixin load the urlconf after resetting it, and fix the comment client test that was leaving ENABLE_DISCUSSION_SERVICE at True

Make the problem handle empty fields and non-integers correctly.

Peter fogg/fix default videos

Fix Lyla showing up everywhere.

Use separate venv for parallel builds

Cosmetic Cleanups Incidental to Next Gen Modulestore Implementaton

Dcadams/email on invite

Optionally email students on enroll/un-enroll actions
by instructor from enrollment tab in LMS.

This ensures that `rake test` will clean the report directories
*before* running the JS tests.

Studio - revises transparent Sass color vars to use rgba() method

move marketing iframe breakout script to inside existing conditional