* Port bundled distro to use optparse instead of argparse (py2.6)
* Use an absolute import to satisfy the current import testing harness
* Port from subprocess.check_output to subprocess.Popen.communicate() (py2.6)
* Add license location
The changes have been proposed upstream here:
https://github.com/nir0s/distro/pull/232
Upstream is contemplating a branch where everyone wanting python-2.6
support can collaborate without it becoming part of the regularly
supported releases.