Release version 0.12
Merge Release 0.12
Release version 0.13
Merge Release 0.13
Release version 0.14
Merge Release 0.14
Release version 0.15
Merge Release 0.15
Release version 0.15.2
Merge Release 0.15.2
Release version 0.15.3
Merge Release 0.15.3
[release] fixed version after release
Release version 0.15.4
Merge Release 0.15.4
[task] added accept header
[fix] changed 'resource-server/authentication/user' endpoint to POST
[fix] made search for group membership less restrictive
[fix] made search for all multi-valued attributes membership less
restrictive
[release] updated versions before release