If a forge module is added to the Puppetfile after the pup-tests
script is used to "create" the environment, pup-tests "apply" will
now download and install them.
Created a new backup virtual machine server called "backups" with a
simple configuration using the Getting Started with Amanda tutorial.
README also updated to reflect new workflow.
Development moved to VirtualBox due to work's custom vagrant box
only supporting the VirtualBox provider. Development may eventually
end up back on libvirt. Version numbers were updated, some broken
code was removed and more instructions were added on the readme.