Add grade functionality for LTI (BLD-384)
Add lookup table to students module.
Update test lti server and add script for manual run
Investigations.
Add processing of XML request to LTI.
Add course_id to lookup table.
Fix post dict and add click on submit button.
Updates on lookup table and  functions.
Add custom handler.
Add oauth sign.
Updated mock_lti_server and removed odd unicode decalarion.
Fix oauth body hash.
Add get_handler_url and update mocked server.
Avoid csrf for OAuth signed request from LTI.
OAuth for lti. Working.
Add body hash compare. Still working on.
Fix.
Fix.
Implement oauth signing.
Make resource_link_id mandatory.