loongson/pypi: links for alchemist-traversal

loongson/mirror alchemist.traversal-0.4.0.tar.gz
loongson/mirror alchemist.traversal-0.4.0-py2.5.egg
loongson/mirror alchemist.traversal-0.3.1.tar.gz
loongson/mirror alchemist.traversal-0.3.1-py2.5.egg
loongson/mirror alchemist.traversal-0.3.0.tar.gz
loongson/mirror alchemist.traversal-0.3.0-py2.5.egg