OO-981: check if the catalog is enable in details of course, add a "feature enabled" for site configuration

OO-1068: finish selenium test which plays with course and cp, create 2 tests to create a course with a wiki

OO-1068: allow to open several CPs and wiki at the same time in a course and navigate through their sub trees

OO-990: implement real full screen mode with redirect and redraw of the page without header, footer...

OO-990: rework importation of course node with references, implement autowiring capabilities in controllers

OO-936: implements course element "check list", enhance the flexi-table with sort, filter and export, enhance publish process with an update step, upgrade pdfbox to version 1.84

OO-934: the efficiency statement event must redraw only the link to open the efficiency statement and not the whole page

OO-929: remove version on UserCourseInfos (move from optimistic locking to last commit win), rewrite the update method, refactor the UserCourseInfos mapping to use annotations

OO-911, OO-912: implements the course node triggered buttons in assessment tool, implement bulk upload for tasks with selection of a group if needed