loongson/pypi: links for trytond-contract

loongson/mirror trytond_contract-2.2.2.tar.gz
loongson/mirror trytond_contract-2.2.1.tar.gz
loongson/mirror trytond_contract-2.2.1-py2.6.egg
loongson/mirror trytond_contract-2.0.1.tar.gz
loongson/mirror trytond_contract-2.0.1-py2.6.egg