loongson/pypi: links for collective-cart-stock

loongson/mirror collective.cart.stock-0.5.zip
loongson/mirror collective.cart.stock-0.4.zip
loongson/mirror collective.cart.stock-0.3.zip
loongson/mirror collective.cart.stock-0.2.zip
loongson/mirror collective.cart.stock-0.1.zip