no-jira: add a JUnit rule to take screenshot of the browser which make an error during a selenium test, hardened the popup to create feeds

no-jira: small selenium test to create and delete a business group, selenium to test concurrent editing of a course

OO-1770: beautify docx export for Pages and LibreOffice and lot more polish for the forum in general

OO-1635: do afterserver in finally, fix some issues in selenium, make some changes to stream line the gatling tests ...

OO-1493: update to TinyMCE 4.1.9, do the remove of the editors in the DOM replacement routine in function.js ( this prevents leaks of editors in some case )

OO-1443: upgrade JUnit ( long overdue ), remove deprecated junit.* packages, fix some issues with order dependent tests, fix an issue with empty ClusterDoInSync

OO-1241: fix dirty check in the flexi version of menu tree, fix the selenium tests, fix a missing button in the publish process ( catalog step )

OO-1068: 1 selenium test to test a catalog round trip, create categories in catalog, create course, add it to catalog, open my courses, navigate catalog until course is open

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