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

OO-863: filter html of some descriptions, doesn't escape score, point and duration, fix some french wording

OO-631: fire events on JMS after committing the membership changes, add a direct event for enrollment to update the GUI in a synchronous manner

OO-613: unify Onyx QTI 2.1 tools with the OLAT QTI 1.2 tools to remove duplicate code, change the WebService stack for Onyx

OO-622,CL-225: remove username from GUI in place where is not really needed and students can see it. Mark others place with //TODO username where it need more works and/or the username is only visible by author/coach/admin... Additional fix the setup sql for MySQL (index too long).

OO-531: fix full page refresh after adding a new course building block, fix scrollTop method everywhere

no-jira: in repository details, open the editor of course the same way it will opened from the course (with breadcrumbs)

OO-531: work on tooltip for link, CSS for tooltip, ajax tree replacement in e-portfolio, z-index in dialog, compressed javascripts, update jquery and jquery ui

OO-530,OO-537: as follow-up of the work in 8.3, remove some maps which are not really useful, remove more unused variables, remove the views and their mapping...

OO-502: move the groups / roles cache from the RunMainController to the UserCourseEnvironment to speed-up the condition interpreter on course with a lot of rules

OO-491: the activate catch the OLATSecurityException, the user which has a "wrong" business path is not responsible for it