loongson/pypi: links for band-wagon-iitb

loongson/mirror band_wagon_iitb-0.4.tar.gz
loongson/mirror band_wagon_iitb-0.3.tar.gz
loongson/mirror band_wagon_iitb-0.2.tar.gz
loongson/mirror band_wagon_iitb-0.1.tar.gz