[code-quality] Yet another metric

[Ian Cordasco]

So I was just introduced to pyroma
(https://pypi.python.org/pypi/pyroma,
https://bitbucket.org/regebro/pyroma) which would probably work nicely
as a plugin to flake8 or just as a good metric in general.

It doesn't exactly measure the quality of the code itself, BUT it does
measure the quality of a package which I'm sure would be useful to
some (if not many) of our users.

I had never thought of analyzing a package for quality beyond it's
source (in all candor), so I'm fairly excited about this tool.