remove unused set_exam_mode_off import
dump the values of the dict!
update with a correct playlist this time!
limit Playlist.all() to those playlists that only have show: True
make tests almost pass
fix test_nalanda_input_exercise
Fixes #2457. Admin auth required to modify playlist assignments.
Require admin to view the playlist assignment page.
increment query tests
Added comment regarding `playlist_id is None` idiom.
Merge pull request #2517 from jamalex/2457

Fixes #2457: Admin auth required to modify playlist assignments (both API and page load)
Merge pull request #2514 from aronasorman/update_playlists

Update playlists