add support for streaming requests. cleanup watcher initilisation

server/options.go

@@ -1,10 +1,12 @@
 package server
 
 import (
+	"github.com/myodc/go-micro/registry"
 	"github.com/myodc/go-micro/transport"
 )
 
 type options struct {
+	registry  registry.Registry
 	transport transport.Transport
 	metadata  map[string]string
 	name      string
@@ -19,6 +21,10 @@ func newOptions(opt ...Option) options {
 		o(&opts)
 	}
 
+	if opts.registry == nil {
+		opts.registry = registry.DefaultRegistry
+	}
+
 	if opts.transport == nil {
 		opts.transport = transport.DefaultTransport
 	}