to curriculum coaches and participants and assessment tool

a QTI 2.1 test

OO-2043: add message under the toolbar is a course is freezed, better handler changes of status, reload course element by status changes...

OO-1881: the isAssessmentMode expert rule is now dependent of the user which open the course and not only from the state of the course

OO-1808: show a message if the course element cannot deliver a view after an author published the course

OO-1616: update user course infos via SQL statement, don't retrieve identity with the bookmark in course

OO-770: work on status for portfolio, group task (indivudal variant), refactor the map of course node per identity...

OO-1616: use update statement instead of lock for update, only set the last usage of the repository entry of a course element once per click

OO-1616: refresh the repository entry for access panel, refresh the entry cached in course too, fix reload in a course element (critical for tests), fix unit tests for i18n, fix named query whicxh filter member ships

OO-1616: used named query for some queries which are often used, get user course infos with the resource ( hitting the foreign key directly )

OO-1635,OO-722: refactor the ajax by iframe to use XHR, push the current business path to the browser via HTML5 push state, implements back button support via HTML5 History API...

OO-1624: remove user object and ident from the list of open node ids, preselect the node of the CP instead of always take the first

OO-1615: springuifie mail package, rest package, question pool module... remove unused dependencies...

OO-990: only retrieve the roles once, use them for all access security control, retrieve the groups only if the roles coach, participant or waiting are there... to minimize the number of queries