Log Message:
py-rpyc: update to version 3.4.4

Release rpyc 3.4.4
- Fix refcount leakage when unboxing from cache (#196)
- Fix TypeError when dispatching exceptions on py2 (unicode)
- Respect ``rpyc_protocol_config`` for default Service getattr (#202)
- Support unix domain sockets (#100,#208)
- Use first accessible server in ``connect_by_service`` (#220)
- Fix deadlock problem with logging (#207,#212)

Release rpyc 3.4.3
- Add missing endpoints config in ThreadPoolServer (#222)
- Fix jython support (#156,#171)
- Improve documentation (#158,#185,#189,#198 and more)