Python 3 compatible PyPI release

[jcushman]

Thanks for this project! Is it time for a PyPI release? The current published version isn't compatible with Python 3, but the github version is working for me (tested compute() running on Python 3.7 on Debian and MacOS).

[pdelagrave]

Hi
We have the same problem and need to include the latest simhash-py into other open source projects. The lack of a new release on pypi is a problem for us at the moment.

Is it possible to release a new version on pypi?
https://pypi.org/project/simhash-py/

cc @b4hand @dlecocq @gautamkshitij

Thanks!