Update news, bump version and copyright years, update tox.ini (#80)

__version__ was buried :( (#76)

Prep for 0.8.0 release (#65)

Add date to 0.7.0 release

Update release date for v0.6.0

Update changelog and bump version to 0.5.2

Bump version to 0.5.1 to make PyPI happy

Update changelog

Relax linters for tests and monkey-patched code