Relicensed under MIT.

This was already done on the deserted rewrite branch but unfortunately
a clean merge wasn't possible so I had to do it manually.
Brought over packer stuff from discared rewrite.

Since it only includes OpenVZ the entire thing is useful right off the
bat.
Removed dependencies on Ansible.

Ansible is great but isn't super appropriate for what I'm doing here.
It has also been making things difficult. All the needed ansible
playbooks have been hastily converted to shell scripts.
Added Packer artifacts to gitignore.
Added `make install` for Packer.
Brought over vagrant stuff.

Again, converted any ansible stuff into shell. ZeroMQ is now installed
from default CentOS repos (don't know if it's the right version yet).
`make install` now updates the box.
Grew the size of root partition on VM.
Set up vagrant to install Galah automatically.