loongson/pypi: links for pyf-components-producers-descriptorsource

loongson/mirror pyf.components.producers.descriptorsource-0.5.tar.gz
loongson/mirror pyf.components.producers.descriptorsource-0.5-py2.6.egg
loongson/mirror pyf.components.producers.descriptorsource-0.4.tar.gz
loongson/mirror pyf.components.producers.descriptorsource-0.3.tar.gz
loongson/mirror pyf.components.producers.descriptorsource-0.3-py2.6.egg