Remove flags from server package. Create cmd package to parse flags and cli usage

template/main.go

@@ -1,12 +1,16 @@
 package main
 
 import (
+	"github.com/asim/go-micro/cmd"
 	"github.com/asim/go-micro/server"
 	"github.com/asim/go-micro/template/handler"
 	log "github.com/golang/glog"
 )
 
 func main() {
+	// optionally setup command line usage
+	cmd.Init()
+
 	server.Name = "go.micro.service.template"
 
 	// Initialise Server