Changes between 5.14.2 and 5.15.0.RC1

This is a pre-release for 5.15.0, a maintenance release with a bug fix, usability improvements, and dependency upgrades. It is compatible with 5.14.x. All users of the 5.x.x series are encouraged to test this version.

Thanks to @vikinghawk and @laststem for their contribution.

Fix potential deadlock in AutorecoveringConnection

GitHub PR: #786

Use available processor number for default thread count in consumer work service

GitHub issue: #730

Add host description when throwing MissedHeartbeatException

GitHub PR: #726

Bump dependencies

GitHub issue: #717