loongson/pypi: links for pybagit

loongson/mirror pybagit-1.5.2.tar.gz
loongson/mirror pybagit-1.5.2.macosx-10.11-x86_64.tar.gz
loongson/mirror pybagit-1.5.0.tar.gz
loongson/mirror pybagit-1.5.0.macosx-10.6-x86_64.tar.gz
loongson/mirror pybagit-1.0.1.zip
loongson/mirror pybagit-1.0.1.tar.gz
loongson/mirror pybagit-1.0.tar.gz