OO-760: replace the user name with the full name in the return box of the task course building block

OO-622: make the enable/disable flag consistent in the tunnel component, send same header in iframe mode

OO-531: fix add to catalog in publish wizard, fix catalog / blog clear cache selenium tests, upgrade arquillian to the last final

OO-686,OPENOLAT-32: fix enter behavior in wizard, enhance the user search form to accept enter in the autocomplete field and the user attributes form

OO-623: check more places where authors can create groups as enrolment and contact course building block, visibility access rules and course preview form

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

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

OO-664: write the filename in the link (apache can after see the mp3 ending and not compress the file)

CL-220: light refactoring of the mail inbox/outbox for Oracle with a light version of the DBMail object without the body of the mail, optimize some queries to prevent loading of security groups with a subquery

OO-619: for compatibility, set the delivery options for old single page, structure node and CP to use the glossary