Add consul-asg-join, a tool that assists Consul servers in auto-joining their ASG peers.
Add consul-asg-join, a tool that assists Consul servers in auto-joining
their ASG peers.

Fixes #21

tinnightcap/nubis-consul,Nubisproject/nubis-consul,gozer/nubis-consul,Nubisproject/nubis-consul,gozer/nubis-consul,limed/nubis-consul,tinnightcap/nubis-consul,limed/nubis-consul,gozer/nubis-consul,Nubisproject/nubis-consul