Issue 1842
InstructorFeedbackQuestionSubmissionEditPageAction
- branches not covered, line 38

+ Do TODO in InstructorFeedbackQuestionSubmitPageUITest(Grace period test case)
Add branch coverage for private sessions.
Merge remote-tracking branch 'origin/master' into Issue1842
Fix tests broken by adding test data.
Issue 1851
InstructorFeedbackQuestionSubmissionEditSaveAction
- branches not covered, line 41 (5 of 6 missed) now 1 missed

+ Add tests to cover branches
+ Fix previous test in InstructorFeedbackQuestionSubmissionEditPageActionTest
Remove done TODO.
Merge branch 'master' into Issue1851
[1851] Cleanup InstructorFeedbackQuestionSubmissionEditSaveAction

fixes #1851