Paste

What's Changed
* misc bugs + please pyflakes by a-detiste in https://github.com/cdent/paste/pull/89
* Remove unused format_environ method in watchthreads APP by cdent in https://github.com/cdent/paste/pull/90


**Full Changelog**: https://github.com/cdent/paste/compare/3.8.0...3.9.0

What's Changed
* remove most python2 compatibility by a-detiste in https://github.com/cdent/paste/pull/88

New Contributors
* a-detiste made their first contribution in https://github.com/cdent/paste/pull/88

**Full Changelog**: https://github.com/cdent/paste/compare/3.7.1...3.8.0

**Full Changelog**: https://github.com/cdent/paste/compare/3.6.1...3.7.1

The main change for 3.7.0 and beyond is dropping support for Python 2. In the past it was possible to get Paste to work in Python 2 with some effort. That's now no longer possible. If Python 2 is required for some reason, use an older version of Paste.

What's Changed
* Turn on github action for tests on pull requests by cdent in https://github.com/cdent/paste/pull/84
* Add a Makefile for simple automation by cdent in https://github.com/cdent/paste/pull/85


**Full Changelog**: https://github.com/cdent/paste/compare/3.6.0...3.6.1