Merge pull request #769 from skirpichev/v1.4.0a1

v1.4.0a1

Merge pull request #694 from skirpichev/use-setuptools_scm

Use setuptools_scm to update __version__

version 1.3.0

version 1.2.1

Merge pull request #568 from skirpichev/pypi-uploads

Automate PyPI uploads

version 1.2.0

version 1.1.0

version 1.0.0

update docs and call this 0.19

call this 0.18