Merge pull request eregs#345 from cmc333333/bump-4.2.0

Bump version to 4.2.0

Merge pull request eregs#330 from cmc333333/37-42-fixes

Fixes for 37 CFR 42 history

Merge pull request eregs#318 from cmc333333/version-bump

Updates to setup.py

Internal Release (0.6.1)