root/pypi: links for texar

root/pypi texar-0.2.4.tar.gz
root/pypi texar-0.2.3.tar.gz
root/pypi texar-0.2.2.tar.gz
root/pypi texar-0.2.1.20190731b0.tar.gz
root/pypi texar-0.2.1.tar.gz