Vagrant + CoreOS + Docker

Another superset of numenta/nupic#1519 after some cleanup.  Review after that PR is merged, but otherwise you can evaluate the impact of this PR by following the instructions in coreos-vagrant/README.md

Replaces https://github.com/numenta/nupic/pull/1525
Vagrant from is missing the  [https://www.vagrantup.com/](https://www.vagrantup.com/) link