root/pypi: links for mozscreenshots

root/pypi mozscreenshots-0.4.0.tar.gz
root/pypi mozscreenshots-0.3.1.tar.gz
root/pypi mozscreenshots-0.3.tar.gz
root/pypi mozscreenshots-0.2.1.tar.gz
root/pypi mozscreenshots-0.2.tar.gz