etcd 2.1 released

The etcd 2.1release is out. "For a quick overview, etcd is an open source,distributed, consistent key value store for shared configuration, servicediscovery, and scheduler coordination. By using etcd, applications canensure that even in the face of individual servers failing, the applicationwill continue to work. "New features include a new authentication/authorization API, variousrobustness improvements, better logging, and a new metrics API.