loongson/pypi: links for collective-z3cform-addablechoice

loongson/mirror collective.z3cform.addablechoice-0.6.zip
loongson/mirror collective.z3cform.addablechoice-0.5.zip
loongson/mirror collective.z3cform.addablechoice-0.3.zip
loongson/mirror collective.z3cform.addablechoice-0.2.zip
loongson/mirror collective.z3cform.addablechoice-0.1.zip