Add release notes for 061a46beefd2318d711b790f9a6cc9f9e832b2b1, concerning change to beta-tester groups
Add failing test for [LMS-1528]

Also cleans up test_view_authentication to use user factories for
various user classes
Fix [LMS-1528] (500 error when checking for beta access)
fix OrgInstructorRole definition and add tests
Merge pull request #1743 from cpennington/fix-beta-tester-roles

Fix for [LMS-1528], plus Changelog entry for the related feature