Imports of package v2

PathSynopsis
github.com/coreos/go-etcd/etcd
github.com/gorilla/muxPackage mux implements a request router and dispatcher.
net/httpPackage http provides HTTP client and server implementations.
pathPackage path implements utility routines for manipulating slash-separated paths.
sortPackage sort provides primitives for sorting slices and user-defined collections.
strconvPackage strconv implements conversions to and from string representations of basic data types.
timePackage time provides functionality for measuring and displaying time.