refactored code to make functions do only one thing. Changed test cases for greater coverage
Merge branch 'master' of https://github.com/TEAMMATES/repo into Issue1903
changed html pages to match test cases. Fixed minor bug in iFE,js file
removed a file earlier added. Added more specialised functions to check if new question form is displayed
added a todo that will reduce html compares
added comments to clarify lack of deleteActionTest
Merge branch 'master' into Issue1903
[1903] Clean up InstructorFeedbackEditPageUiTest

fixes #1903