Merge branch 'master' into t

* master:
  go/neo/proto: Version 1 -> 4
  go/neo/proto: RequestIdentification += DevPath
  go/neo/proto: Sync GetObject and docstrings with NEO/py
  go/neo/proto: Switch enum encoding from int32 to int8
  go/neo/proto: Sync message type codes with NEO/py
  go/neo/proto: Sync CellState enums order with NEO/py
  go/neo/proto: Sync OUT_OF_DATE text with NEO/py