Changes between 4.2.0 and 4.2.1

This is a maintenance release that includes a bug fix about TLS settings. It's backward compatible with the 4.x.x series and users of those series are encouraged to use this release.

SSLContext is always set up to default value when using ConnectionFactory#setUri

Calling ConnectionFactory#setUri would always set the SSLContext property to the default value (which trusts all servers). The SSLContext could be set up after the call to setUri, but a warning would nevertheless be logged. setUri now sets the SSLContext to the default value only if it hasn't been set before.

GitHub issue: #298