loongson/pypi: links for pdis-xpath

loongson/mirror PDIS-XPath-0.4.tgz
loongson/mirror PDIS-XPath-0.3.tar.gz
loongson/mirror PDIS_XPath-0.3-py2.4.egg
loongson/mirror PDIS_XPath-0.3-py2.3.egg