Add git ignore
Utility scripts for base provisioning

You could do things like installing the VirtualBox guest additions in
Puppet, but these scripts exist for provisioning a box that doesn't
have Puppet on it. There is definitely a legit use case for these
'nocm' boxes. Most boxes you'll be given in production won't have
Puppet on them, so they help to try and anticipate everything that you
can.
Template for building CentOS 7.0 VirtualBox image
Clarify repository description