OO-681: enhance the XSL stylesheet which outputs the results to handle interval of values as correct answer

OO-532: fix the callout which stay on the top left of the window after switching the view from month to week and so on

OO-533 various layout improvements question pool, streamlined highlight color in table, calendar and buttons

OO-623,OPENOLAT-128: prevent batch merge, configure, remove... in the groups lists if an item is managed, show a warning if it's the case, add some warnings too if there isn't no selected group for a batch operation

OO-623,OPENOLAT-123: only show the booking infos / warning if the course or the group is not managed, or it's managed but has already a booking configured

OO-658: fix an CSS issue where the open/close link is hidden by the select link, enable to close menu item in the admin tab

OO-670: preselect participant if there is only 1 group or 1 repository entry, add a warning if the user miss to select a role

OO-662: optimize the method which retrieve the memberships of a repository entry the same way as for groups to prevent the cross product in the view

OO-558 show LTI nodes in asessment tool only when score transfering is enabled, analog to SCORM element

OO-662: optimize the members view of course and group. I make three queries to prevent to attack with the o_bs_membership, and prevent a cross product

OO-600: send an email if someone's login is denied, prevent sending e-mail to user which login are denied

OO-531: replace the selection tree in the course wizard,  enhance the menu tree to allow to deselect nodes in the course wizard