loongson/pypi: links for ctrain

loongson/mirror ctrain-0.4.2.tar.gz
loongson/mirror ctrain-0.4.1.tar.gz
loongson/mirror ctrain-0.4.0.tar.gz
loongson/mirror ctrain-0.3.1.tar.gz
loongson/mirror ctrain-0.3.0.tar.gz
loongson/mirror ctrain-0.2.1.tar.gz
loongson/mirror CTRAIN-0.2.0.tar.gz
loongson/mirror CTRAIN-0.1.3.tar.gz
loongson/mirror ctrain-0.1.2.tar.gz
loongson/mirror CTRAIN-0.1.1.tar.gz