Aerospike C# Client Release 4.0.1 (October 28, 2020)

[mcoberly]

Aerospike C# client version 4.0.1 was released on October 28, 2020.

This minor release adds 2 bug fixes.

Fixes

• CLIENT-1370 Fix NullReferenceException in async batch that can happen when multiple retries occur.
• Remove extraneous newline in ClusterStats ToString().