Don't show unit 100 on unit-switching page.
Slight refactor of modal display on unit switching page.
Show loading modal on exam setting page.
 Login Page Issue Fixed -- Multiple Click on Login link now won't redirect to login page if you are logged in
Ensure test unsetting events are fired even when switching exams.
Merge pull request #2824 from jamalex/wait_modal_for_test_unsetting

Wait modal for test unsetting
Merge pull request #2823 from anuragkanungo/login

 Login Page Issue Fixed -- Multiple Click on Login link now won't redirect to login page if you are logged in
Fix for scope error in #2751.
Merge pull request #2827 from jamalex/fix_sprintf_parens

Fix for scope error in #2751.