[PATCH 2/4] vagrant: Add Vagrant-based development environment

[Finucane, Stephen]

> Integrate Vagrant by way of a Vagrantfile and a simple install script.
> This follows many of the instructions found in the development guide
> with the exceptions of the superuser creation, which is optional, the
> loading of archives, which requires per-user authentication, and the
> use of virtual environments, which are unnecessary in a teardown
> environment such as this.
> 
> Signed-off-by: Stephen Finucane <stephen.finucane at intel.com>

Merged.