loongson/pypi: links for clusterapi

loongson/mirror ClusterAPI-0.6.1.tar.gz
loongson/mirror ClusterAPI-0.6.tar.gz
loongson/mirror ClusterAPI-0.5.1.tar.gz
loongson/mirror ClusterAPI-0.5.tar.gz
loongson/mirror ClusterAPI-0.4.tar.gz
loongson/mirror ClusterAPI-0.3.tar.gz