Merge master into breakout_swarm

Signed-off-by: Alex Ellis <alexellis2@gmail.com>

gateway/vendor/github.com/nats-io/go-nats/examples/nats-pub.go

@@ -0,0 +1,46 @@
+// Copyright 2012-2016 Apcera Inc. All rights reserved.
+// +build ignore
+
+package main
+
+import (
+	"flag"
+	"log"
+
+	"github.com/nats-io/go-nats"
+)
+
+// NOTE: Use tls scheme for TLS, e.g. nats-pub -s tls://demo.nats.io:4443 foo hello
+func usage() {
+	log.Fatalf("Usage: nats-pub [-s server (%s)] <subject> <msg> \n", nats.DefaultURL)
+}
+
+func main() {
+	var urls = flag.String("s", nats.DefaultURL, "The nats server URLs (separated by comma)")
+
+	log.SetFlags(0)
+	flag.Usage = usage
+	flag.Parse()
+
+	args := flag.Args()
+	if len(args) < 2 {
+		usage()
+	}
+
+	nc, err := nats.Connect(*urls)
+	if err != nil {
+		log.Fatal(err)
+	}
+	defer nc.Close()
+
+	subj, msg := args[0], []byte(args[1])
+
+	nc.Publish(subj, msg)
+	nc.Flush()
+
+	if err := nc.LastError(); err != nil {
+		log.Fatal(err)
+	} else {
+		log.Printf("Published [%s] : '%s'\n", subj, msg)
+	}
+}