Missing LICENSE file on pypi release

[NicoHood]

The pypi release .tar.gz does not contain the LICENSE file. When using the MIT license it is always required to ship a copy of the exact same license file. Also see:

https://wiki.archlinux.org/index.php/Arch_packaging_standards#Licenses

The MIT, BSD, zlib/libpng and Python licenses are special cases and cannot be included in the 'common' licenses pkg. For the sake of the license variable, it is treated like a common license (license=('BSD'), license=('MIT'), license=('ZLIB') or license=('Python')) but for the sake of the filesystem, it is a custom license, because each one has its own copyright line. Each MIT, BSD, zlib/libpng or Python licensed package should have its unique license stored in /usr/share/licenses/$pkgname/.