root/pypi: links for zr-scalapb-pants

root/pypi zr.scalapb.pants-0.1.8.dev1-py2.7.egg
root/pypi zr.scalapb.pants-0.1.7-py2.7.egg
root/pypi zr.scalapb.pants-0.1.6.tar.gz
root/pypi zr.scalapb.pants-0.1.6-py2.7.egg