Build script or Ansible playbook to run through and update all base boxes

[geerlingguy]

I would like to make it easier for me, every time there's a new VirtualBox release, to build and push updated Vagrant boxes from my local build environment.

Right now there are some manual steps for each box, which means it takes a minimum of a few hours with two or three parallel builds at a time. Not great.

[geerlingguy]

Doing this now.