deis/deis — pull request #928 by carmstrong (2014-05-08 00:48:27+00:00)
Title: chore(Vagrantfile): switch back to coreos-alpha

As of coreos/coreos-vagrant#95, CoreOS is publishing the necessary
metadata to determine what version of CoreOS the alpha image is running.

This enables us to just bump config.vm.box_version when we want to make sure
people are running a certain CoreOS version.