root/pypi: links for pdfer

root/pypi pdfer-0.1.7.tar.gz
root/pypi pdfer-0.1.6.tar.gz
root/pypi pdfer-0.1.4.tar.gz
root/pypi pdfer-0.1.3.tar.gz
root/pypi pdfer-0.1.2.tar.gz
root/pypi pdfer-0.1.1.tar.gz