Merge pull request #34 from joomcode/trigger-topology-refresh-on-clus…

…terdown

Trigger topology refresh on CLUSTERDOWN

Merge pull request #33 from yohayg/feature/con-with-username

conn with username

force PING to flush write buffer

This should help more carefully measure connection latency.

add bin/clean-cluster

ignore non-configured yet hosts

should fix #9

firt public release