v0.1.20

What's Changed

• Release 0.1.20 by @ViridianForge in #97

Added

• Noxfile for testing combinations of supported versions Python and protobuf
• Specifications around support targets for Python and protobuf for the library

Fixed

• Fixed a bug wherein attempting to retrieve a dependency of a FileDescriptor could
  result thrown an exception if the dependency was not being served via reflection by
  the server.

Full Changelog: v0.1.19...v0.1.20