The flag is 'seed-servers'
Merge pull request #1248 from otoolep/fix-join-cluster-help

The flag is 'seed-servers'
Launch HTTP handlers in goroutines
Merge pull request #1250 from otoolep/launch_handlers_in_goroutines

Launch HTTP handlers in goroutines
Use existing config variable, not a new one

Without this, log remained closed. Always.
Merge pull request #1253 from otoolep/fix_config_ref

Use existing config variable, not a new one
Add logging of Raft initialization
Tell Broker to join during 'join-cluster'
Add connection URL to Broker
Explicitly use 'raft' in URL path for Raft ops
connectionAddr -> addr

This is more line with existing Go packages.
Add protocol to Raft connection string

Fixed at HTTP for now.
Prefix remaining Raft paths with 'raft'
Check for connection URL on Broker Open()

Update unit tests suitably.
Merge pull request #1249 from otoolep/3_node_raft

Enable join of nodes to existing cluster