Merge branch 'release/1.7.4' into develop
Preserve command argument types using JSON
Clean stop
Fix automatic restart for worker/server

- add systemd unit for puli server
- execute a systemd restart when worker is marked as "to be restarted"
  i.e. when killfile has proper value
Merge branch 'feature/clean_stop' into develop
Update allocatedRN
Update version number
Merge branch 'release/1.7.5'