Docker official image

[webysther]

I happened to notice that for sometime there has been a discussion about creating an official hhmv docker image.

I asked about this issue in docker-library/official-images/issues/1638 and @yosifkit suggested a PR from upstream.

I have been referred on tweeter(https://twitter.com/HipHopVM/status/705063018606886912) to this repo as the official one, and since it has no open issues and has been praised by the docker-library mantainer, I assume it's stable.

Would it be terribly inconvenient to ask for a PR to https://github.com/docker-library/official-images?

[webysther]

non-official repo in search on hub.docker for query "hhvm" show 2,5k pull, mostly (i believe) is for hhvm/hhvm if show as official.