Merge branch 'AccessControl' into 73398448
courseLevel complete frontEnd
courseInstructorEditSave and courseInstructorAdd
view student access control done
simplification of access control code
view student details link disabled for unaccessible
refactoring of courseEditPage
words in courseEditPage and start on sessions
start on view eval results
not showing eval results to disabled instructors
Move on to whole test suite
fixing of tests. ready for merging to Feature branch
Merge branch '73398448' into AccessControl
done and ready for merging
Merge branch '73528618' into AccessControl
refactoring of gate keeper to reduce db read
not showing students in only-allowed sections
fixing issue2204
view fbresponses and comments, submit fbresponses and comments, add/edit/delete responses and comments
fixing all tests for the feature on this branch