loongson/pypi: links for bitcointrade

loongson/mirror bitcointrade-0.7.0.tar.gz
loongson/mirror bitcointrade-0.7.0-py3-none-any.whl
loongson/mirror bitcointrade-0.7.0-py2-none-any.whl
loongson/mirror bitcointrade-0.6.2.tar.gz
loongson/mirror bitcointrade-0.6.2-py3-none-any.whl
loongson/mirror bitcointrade-0.6.2-py2-none-any.whl