root/pypi: links for picka

root/pypi picka-1.0.1.tar.gz
root/pypi picka-1.0.1.macosx-10.11-x86_64.tar.gz
root/pypi picka-1.0.tar.gz
root/pypi picka-1.0.macosx-10.11-x86_64.tar.gz