Prepare MWW release v3.5
- for now without ‘subjects’ feature
- mww branches in search and submodules
(from redmine: issue id 1190, created on 2018-09-13tgradl, closed on 2019-02-27)
(from redmine: issue id 1190, created on 2018-09-13tgradl, closed on 2019-02-27)