Rename function and show non visible and visible tests - refs BT#8296
Add comments to query - refs BT#8296
Merge pull request #42 from DeEvo/8296

8296
Update query to get exercises for report -refs BT#8322
Merge pull request #43 from DeEvo/8322

Fix bug -refs BT#8322
Fix issue deleting user from course-session - refs BT#8227