Block a user
rings: Prefix and Address factories
env: export REGIONS and ZONE{zoneID}_REGION
don't really like _, _ = fmt.Fprintf(&buf, "%v", v) aproach, but at the moment I cannot come up with a better solution. Calling _,_=buf.WriteString(fmt.Sprintf(...blah...)) does not seem any nicer :(
cluster: introduce RegionIterator, Zone.ForEachRegion and decouple getRegion from finishRegion
cluster: introduce Region.Cluser and m/{region}/k8s_token to store a cluster's token
wireguard: switch from gcfg to asciigoat.org/ini/basic
jpictl: add --version and version command