Adds error 13639 to reconfiguration.
Also adds 10009, which we got last night during a stepdown.
Don't clear the auth when disconnecting, it can mess up queries on the node that are unauthorized due to a failover.
Merge pull request #284 from jonhyman/feature/reconfig-code

Adds error 13639 to reconfiguration.
Merge pull request #286 from jonhyman/feature/no-auth-clear-master

Don't clear the auth when disconnecting, it can mess up queries on the n...
Revert "Merge pull request #286 from jonhyman/feature/no-auth-clear-master"

This reverts commit dec51d631774638e36e118808b5e9a89a8e95a83, reversing
changes made to b6e499b6c75ddd2acb56b372b60b65be10104976.

[fixes #287]
Bump version to rc2
Bump local ruby version
Bump to version 2.0