Change assert statements
Disable options that should  not be selected.
Fix some tests
Merge branch 'master' into Issue2383
Fix JS
Fix tests
Force invalid feedback giver/recipient to valid ones and inform user
Optimize function 'isQuestionHasResponse'
Fix for showing status to user
Add comment to be clearer
[2451] Optimize 'isQuestionHasResponses' function
Add tests
Merge https://github.com/TEAMMATES/repo into Issue2429
Merge remote-tracking branch 'origin/master' into Issue2383
Fix typo and reduce nesting
[Issue2383] java.lang.AssertionError: Contrib qn giver type invalid: TEAMS expected: but was:
Merge https://github.com/TEAMMATES/repo into Issue2429
Test for when session type is TEAMEVALUATION