trend/dev: links for 31

root/pypi 31-2.2.tar.gz
root/pypi 31-2.1.tar.gz
root/pypi 31-2.0.tar.gz
root/pypi 31-1.6.tar.gz
root/pypi 31-1.5.tar.gz
root/pypi 31-1.4.tar.gz
root/pypi 31-1.3.tar.gz
root/pypi 31-1.2.tar.gz
root/pypi 31-1.1.tar.gz
root/pypi 31-1.0.tar.gz
root/pypi 31-0.4.tar.gz
root/pypi 31-0.3.tar.gz
root/pypi 31-0.2.tar.gz
root/pypi 31-0.1.tar.gz
root/pypi 31-0.0.tar.gz