Add grade functionality for LTI (BLD-384)
Add handle_ajax.
Add test for handle_ajax.
Fix typo.
Fix lis_outcome_service_url.
Work on acceptance test.
Remove lti djangoapp.
Add lookup table to students module.
add index, add custom_user to publish, add undefined response.
fixes.
Add true hostname to mock lti server
Fixed server.
Investigations.
Updates, unfinished.
Add referer and xml return
Fixes.
Add tests
Update xml format.