Add a check for beta users in the video_info API

Discovered a case I missed on the original version of this. See
https://github.com/edx/edx-platform/pull/5798
JIRA: MA-76

Also fixes checking for mobile_access when course is None
JIRA: MOB-978
MA-141 Support webm encoding for VAL-enabled videos
Updated open sans webfonts with latest.
TNL-395
Merge pull request #5945 from edx/waheed/tnl395-updated-open-sans-webfonts

Updated open sans webfonts with latest.
WL-124 added the jasmine tests for the autoenrollment csv

Added bokchoy tests and assets (csv files) for CSV auto reg and enrollment.
Set the env flag "ALLOW_AUTOMATED_SIGNUPS": true in bok_choy.env.json

Resolved quality issues.

resolved cherry pick conflicts

Improved bokchoy tests as per code review suggestions.

added the BDD in the docstrings for all the test scenarios

changed the bok choy test string

Improved bokchoy tests as per further code review suggestions.

Made a MembershipPageAutoEnrollSection a separate PageObject.
Merge pull request #5920 from edx/aleffert/additional-beta-checks

Add a check for beta users in the video_info API
Merge pull request #5981 from edx/mobile/MA-141

MA-141 Support webm encoding for VAL-enabled videos
Merge pull request #5969 from edx/muhhshoaib/WL-124-front-end-tests-for-auto-enrollment

muhhshoaib/wl 124 add front end tests for autoenrollment