Fixed build after changes in freeopcua for windows.
Merge branch 'master' of https://github.com/treww/opcua-python
Merge pull request #31 from treww/master

Fixed build after changes in freeopcua for windows.
Merge pull request #33 from oroulet/master

fix subscription test
Merge branch 'master' of https://github.com/FreeOpcUa/opcua-python