Bump version to 3.2.4.1

Merge branch 'hotfix/3.2.4'

Actually target .NET Standard 2.0

This will currently fail on the build servers.

Merge branch 'dev'

Bump version to 3.2.1

Bump version to 3.1.10

Merge branch 'dev'

[Doc] Minor doc tweaks

* Remove duplicate transaction docs
* Point to blog post on prepared statements

Merge branch 'hotfix/3.1.9'

Merge branch 'hotfix/3.1.8'