Ansible playbook is exectued by second stage now
Updated the name of the builder for new packer.

* With the addition of the virtualbox-ovf builder, they cahnged the
  name of the builder that uses an ISO from virtualbox to
  virtualbox-iso.
Fixed bothersome networking issue.

* See github.com/galah-group/galah/issues/399#issuecomment-31551601
Got the second stage packer builder working.

* Doesn't make a vagrant box yet and there's a few other changes I want
  to make but it looks like we're just about ready.