Allow reconnect on connection loss with retry using ReconnectStatusListener.
Unregister ReconnectStatusListener upon client.close()
Merge pull request #1473 from JingitLabs/client-reconnect

Allow reconnect on connection loss with retry using ReconnectStatusListener
Add "Experimental" to the ClientConfig reconnect on connection loss method.

Also explained that it's turned off by default.
Merge pull request #1481 from VoltDB/client-reconnect

Auto-reconnecting Java client