[Ansible-service-broker] Release branch and PRs

[Erik Nelson]

Hey guys,

So it sounds like after today we've decided to cut a release branch
for TP1 and call that 0.9.0 (reserving 1.0.0 for the GA release).
We've already ballooned to 10 outstanding PRs again; they aren't huge,
but I'd really like to try to keep on top of them so we can avoid the
situation we hit last week.

What's the official plan with the release branch? We're expecting to
do that tomorrow or Friday, and the outstanding PRs should be brought
into master afterwards?