[VOTE]: Release Proton 0.9.1-rc1 as 0.9.1

[Rafael Schloming]

Hi Everyone,

I've put out an RC for 0.9.1 in the usual places.

Source artifacts are here:
    https://people.apache.org/~rhs/qpid-proton-0.9.1-rc1/

Java binaries are here:
    https://repository.apache.org/content/repositories/orgapacheqpid-1033

Please check them out and register your vote:

[  ]: Yes, release Proton 0.9.1-rc1 as 0.9.1
[  ]: No, ...

--Rafael