publish MacOS binaries

[hboutemy]

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• What are you trying to do?
  I'm trying to run ahab on my Mac

• What feature or behavior is this required for?
  I'm extracting package list from a Docker container, but it's easier to avoid installing ahab inside the container by running it directly from the host OS (a Mac in my case):
  docker run --rm my-docker-image dpkg-query --show --showformat='${Package} ${Version}\n' | ahab --package-manager dpkg

• How could we solve this issue? (Not knowing is okay!)
  I tested by building ahab myself, it works
  now it's just about providing a binary to users instead of letting them build ahab

• Anything else?

cc @bhamail / @DarthHater / @ken-duck

[bhamail]

Should be fixed by: 384fcae

Please holler if not (publishing now).

[hboutemy]

it works as expected: it's nice to have a pre-built binary that displays Ahab version: 0.2.7

thank you @bhamail