Cut releases with release notes? about fissile

[drnic]

I've also added fissile to our homebrew/ci if that's useful to anyone else to get latest fissile automatically on brew upgrade:

$ brew install starkandwayne/cf/fissile
==> Installing fissile from starkandwayne/cf
==> Downloading http://cf-opensusefs2.s3.amazonaws.com/fissile/develop/fissile-7.0.0%2B354.gacefcfa4.darwin-amd64.tgz
######################################################################## 100.0%
🍺  /usr/local/Cellar/fissile/v7.0.0+354.gacefcfa4: 3 files, 27.5MB, built in 1 minute 58 seconds

$ fissile version
fissile-7.0.0+354.gacefcfa4

If we switch to cutting github releases, then I'll change the CI pipeline to only pull fissile releases from there. Until then, it'll get whatever turns up in the s3 bucket's fissile/develop/ folder.

[gaktive]

Hi! Upon discussion with @viovanov, we'll look to cut a new release to help with scf v3 work. https://github.com/SUSE/scf/issues/2870 will track those efforts (yes, outside this repo) and we'll boost the docs in this repo.

[manno]

We added a release of the current state: https://github.com/cloudfoundry-incubator/fissile/releases/tag/v7.0.0%2B374.gb8e8e6af
This should be easier to access, than the s3 buckets (https://cf-opensusefs2.s3.us-east-1.amazonaws.com/fissile/develop/fissile-7.0.0%2b374.gb8e8e6af.darwin-amd64.tgz).