cjharries/dev: links for python-barcode

INFO: Because this project isn't in the mirror_whitelist, no releases from root/pypi are included.

cjharries/dev python-barcode-0.2.1.post1+g887b7db.tar.gz
cjharries/dev python-barcode-0.2.0.post1+g93f79dd.tar.gz
cjharries/dev python-barcode-0.1.0.tar.gz