OO-2603: selenium test to test suspended test in a course, remove fieldset in fieldset in calendar form

OO-2602: skip close step if there are no review and no feedbacks, implement some selenium tests to secure the different flows for different settings

OO-2532: add selenium test for the options in test course element, hardened some functions, make QTI 1.2 test work with name of questions and named answers instead of index