Upgrade dependencies
- Major upgrade so various issues should be expected to arise
- Spring and the like
(from redmine: issue id 185, created on 2018-01-22tgradl, closed on 2018-01-24)
- Relations:
- relates #184 (closed)
(from redmine: issue id 185, created on 2018-01-22tgradl, closed on 2018-01-24)