loongson/pypi: links for migrate

loongson/mirror migrate-0.3.8.tar.gz
loongson/mirror migrate-0.3.7.tar.gz
loongson/mirror migrate-0.3.6.tar.gz
loongson/mirror migrate-0.2.2.tar.gz
loongson/mirror migrate-0.2.1.tar.gz
loongson/mirror migrate-0.2.0.tar.gz
loongson/mirror migrate-0.1-py2.4.egg