OO-2837: add the possibility to lazy load tabs in the tabbed pane and use it for business group administration and user overview

OO-2836: update to selenium 3.4, migrate the tests to pass with chrome, add css class mostly in wizards, remove some fieldset in fieldset, add some label around checkbox

OO-2790: add the options to upload assessment documents on a per course element / user base which behave like the user comment

OO-2785: handle the checkbox property in home user search, coaching tool, import of user in group and course

OO-2785: special handling of generic checkbox because "not checked" is "I don't want to search with it"

OO-2756: add check to show only once the user name in the  small user view if the admin configured it wrong, fix css class

OO-2756	: add progress bar and percent value for score, add section summary for the questions correct, answered, and not answered

OO-2499: show a message if the user has not enough privileges to edit the quota and not a red screen