1.0.9

Closed issues:

• Idempotent publishing is not enabled in the upcoming 1.1 release #438

Merged pull requests:

• Expose msgpack serialisers/deserialisers for Message, PresenceMessage #440 (paddybyers)
• RTL6c: implement transient realtime publishing #436 (paddybyers)
• Implement idempotent REST publishing #435 (paddybyers)
• Add support for ErrorInfo.href (TI4/TI5) #434 (paddybyers)
• RSC15f: implement fallback affinity #433 (paddybyers)
• Pass the environment option into echoserver JWT requests #432 (paddybyers)