geopy: Python Geocoding Library

This morning Howard alerted me to a new release of geopy, the Python package that provides a uniform API to a number of free (beer) geocoding services. I like the API and it has more features than what I'd previously written for PleiadesGeocoder, so I ripped out the guts of the Plone geocoding tool and swapped in geopy. My tests pass and I'm quite satisfied that this is a beneficial dependency for Pleiades. I like geopy so much I just sent the author a patch that adds doctests.