Imports
- github.com/kelseyhightower/confd/log
- github.com/kelseyhightower/confd/backends/etcd
- github.com/kelseyhightower/confd/backends/zookeeper
- github.com/kelseyhightower/confd/backends/redis
- github.com/kelseyhightower/confd/backends/consul
- github.com/kelseyhightower/confd/backends/env