loongson/pypi: links for py-librus-api

loongson/mirror py_librus_api-0.3.1.tar.gz
loongson/mirror py_librus_api-0.3.0.tar.gz
loongson/mirror py_librus_api-0.2.7.tar.gz
loongson/mirror py_librus_api-0.2.6.tar.gz
loongson/mirror py_librus_api-0.2.5.tar.gz
loongson/mirror py_librus_api-0.2.4.tar.gz
loongson/mirror py_librus_api-0.2.3.tar.gz