Rewrite VM management system

[ezwang]

The virtual machine management system could use a rewrite, and a new backend (ex: Docker) could be considered.

The old system was configured to be used on Gentoo, instead of Ubuntu. An install script (ansible probably) should also be written so that it is easy to install new virtual machine hosts in the future.

Some improvements could include using names/ids as the identifier instead of a separate UUID field, and implementing #6 and #7.

[DylanJones]

oh hey this happens to be exactly what the libvirt-vm branch is doing