Make ActionTest green

this fixed #2116
Merge branch 'Issue2116' into bootstrap
Make InsEvalSubmitEditPageUiTest green
Fix UI test for InstructorEvalResults
Strengthen numscale step validation for front-end
Fix scrolling to statusMessage
Fix scrolling for get question link
Fix wrong error message for numscale out of range when submitting answer
Fix AllAccessControlTest
make frcLogicTest green
Merge branch 'bootstrap' of https://github.com/TEAMMATES/repo into bootstrap
Merge remote-tracking branch 'origin/bootstrap' into Issue2099