v0.12.0

What's Changed

• Treat RestartRequest arguments identical to Launch/Attach arguments by @corneliusweig in #89
• Use json.RawMessage when polymorphic fields contain submessages by @corneliusweig in #88
• Use the any alias for interface{} by @corneliusweig in #91

Full Changelog: v0.11.0...v0.12.0