status, all users, guests flags

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