remove weave now upstream is updated
reset
getting DNS plugged in via config file
consul 0.4.0 -> DNS on the docker bridge IP and CONSUL_TAIL
change -client flag so consul listens on arpanet address

this lets containers use the HTTP api (if weave configured)

also change the cmd-consul function to use consul not container
read arpanet address and use that for connecting to consul
todo - decide which interface to bind consul to