Prepare for release

Prepare 3.4.0 release

Prepare release v3.3.0

Prepare release v3.2.1

Prepare for v3.2.0 release

Prepare for release v3.1.0

Cleanup dependencies

Prepare release v2.19.0

Merge pull request rbeauchamp#111 from rbeauchamp/feature/rbeauchamp#68

Loosen NuGet package constraints per rbeauchamp#68

Prepare release v2.18.7