root/pypi: links for z3c-contents

root/pypi z3c.contents-1.0.0.tar.gz
root/pypi z3c.contents-1.0.0a2.zip
root/pypi z3c.contents-1.0.0a1.tar.gz
root/pypi z3c.contents-0.6.0.zip
root/pypi z3c.contents-0.5.0.zip