coreos/etcd — pull request #1340 by barakmich (2014-10-21 18:43:24+00:00)
Title: Calculate IDs based on PeerURLs and --initial-cluster-name

Removes the notion of node name being anything more than advisory or
command-line grouping, and adds checks for bootstrapping the command
line. IDs are consistent if the URLs and cluster name (as a token) are consistent.

Adds a flag --initial-cluster-name and mentions it in clustering.md