root/pypi: links for collective-opensearch

root/pypi collective.opensearch-1.6.tar.gz
root/pypi collective.opensearch-1.5.tar.gz
root/pypi collective.opensearch-1.4.1.tar.gz
root/pypi collective.opensearch-1.4.tar.gz
root/pypi collective.opensearch-1.3.tar.gz
root/pypi collective.opensearch-1.2.tar.gz
root/pypi collective.opensearch-1.1.tar.gz
root/pypi collective.opensearch-1.0.tar.gz