wip/py-virtualenv-clone 0.2.6 NetBSD

A script for cloning a non-relocatable virtualenv. Virtualenv provides a way to make virtualenv's relocatable which could then be copied as we wanted. However making a virtualenv relocatable this way breaks the no-site-packages isolation of the virtualenv as well as other aspects that come with relative paths and '/usr/bin/env' shebangs that may be undesirable.