Generate doc filenames in a slightly smarter way
Generate doc filenames in a slightly smarter way

Fixes issue #51

lincolnloop/pycco,pearswj/pycco,williamwallacebrave/pycco,ryanisnan/pycco,ryanroser/pycco,ChadFulton/pycco,theerik/pycco,rahuldave/pycco,rgeoghegan/pycco,fitzgen/pycco