Imports of etcd command

PathSynopsis
github.com/coreos/etcd/etcdmainPackage etcdmain contains the main entry point for the etcd binary.
github.com/coreos/etcd/migrate/starter
github.com/coreos/etcd/pkg/coreos
logPackage log implements a simple logging package.
osPackage os provides a platform-independent interface to operating system functionality.
strconvPackage strconv implements conversions to and from string representations of basic data types.