loongson/pypi: links for buildout-recipe-isolation

loongson/mirror buildout.recipe.isolation-0.3a1.zip
loongson/mirror buildout.recipe.isolation-0.3a1.tar.gz
loongson/mirror buildout.recipe.isolation-0.2.0.tar.gz
loongson/mirror buildout.recipe.isolation-0.1.1.tar.gz