Migration for role_coursenum deprecated roles
Call other CourseModeView methods using serialized course_id
Remove dead code
Don't use Empty directly, let the manager handle it
Make the arguments to translate_location_to_course_locator more specific
Fix ConditionalTest test system
Fix PsychometricData query
Merge pull request #3816 from cpennington/ok-psychometrics

Fix PsychometricData query
Merge pull request #3814 from cpennington/ok-conditional-test

Fix ConditionalTest test system
Merge pull request #3812 from cpennington/ok-simpler-loc-mapper

Make the arguments to translate_location_to_course_locator more specific
Merge pull request #3811 from cpennington/ok-dont-use-empty

Don't use Empty directly, let the manager handle it
Merge pull request #3809 from cpennington/ok-dead-code

Remove dead code
Merge pull request #3808 from cpennington/ok-course-mode-errors

Call other CourseModeView methods using serialized course_id
Merge pull request #3806 from edx/dhm/opaque_migrate_0036

Migration for role_coursenum deprecated roles
Added asserts to ensure course_ids are course key objects.