Package the LICENSE file on source distributions #21
Description
The LICENSE file isn't included in the source archive on PyPI for some reason. Most licenses require the file to be included in all distributions of the software. This is currently breaking the conda-forge build, which enforces packages to have a license file (conda-forge/pytest-sftpserver-feedstock#4). We can work around that for v1.3.0 but it would be nice if future releases packaged the file.
I tried to reproduce this locally but when I run python setup.py sdist the file is included in there for some reason (even though there is no MANIFEST.in file). So I'm not sure why it's not on the PyPI archive. What is the process used to build and deploy to PyPI?