Updating default values and changing event data.
Merge pull request #5965 from edx/sanchez/change-order-event

Updating default values and changing event data.
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