OO-1819: add param for inital author, add param to not set the initial author, return more infos for course members

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

OO-1812: only load the users which are shown in a list, make the e-mail visible for all users if configured

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

OO-1616: fix the certificate unit test in the REST API suite, don't doInSync during import of the course, remove get resource method (duplicate), remove unused constructor and method

no-jira: add selenium test for the direct deletion of user, remove empty info in the panel to create a business group, add the missing parameter of the uploaded by i18n key in different languages

OO-1805: check responses boundaries before opening the rich text editor to prevent array out of bound exception

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

OO-1770: make the selenium tests which use the collaboration tools more reliable, more unit tests for forum

OO-1770: remove the maven repository of codehaus, more unit tests for forum, hardened the closing of the info blue box, fix an issue with the blue box, fix an issue with AssessmentTest.bulkAssessment on PostgreSQL