Add a status endpoint to the server.

This pull request adds a status endpoint to the Red October server; as
of this pull request, the status endpoint only returns the current
delegation persistence state. The HTTP UI has not been updated, as
this is scoped out for a future request; however, the CLI utility now
features a status command to fetch this information.

cmd/ro/main.go

@@ -43,6 +43,7 @@ var commandSet = map[string]command{
 	"re-encrypt": command{Run: runReEncrypt, Desc: "re-encrypt a file"},
 	"order":      command{Run: runOrder, Desc: "place an order for delegations"},
 	"owners":     command{Run: runOwner, Desc: "show owners list"},
+	"status":     command{Run: runStatus, Desc: "show Red October persistent delegation state"},
 }
 
 func registerFlags() {
@@ -260,6 +261,19 @@ func runOwner() {
 	fmt.Println(resp)
 }
 
+func runStatus() {
+	req := core.StatusRequest{
+		Name:     user,
+		Password: pswd,
+	}
+
+	resp, err := roServer.Status(req)
+	processError(err)
+
+	fmt.Println(resp.Status)
+	fmt.Println(resp)
+}
+
 func main() {
 	flag.Usage = func() {
 		fmt.Println("Usage: ro [options] subcommand")