update to latest micro

Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>

options.go

@@ -23,20 +23,20 @@ type netListener struct{}
 // send.  Default maximum message size is 8K
 //
 func MaxMsgSize(s int) server.Option {
-	return setServerOption(maxMsgSizeKey{}, s)
+	return server.SetOption(maxMsgSizeKey{}, s)
 }
 
 // AuthTLS should be used to setup a secure authentication using TLS
 func AuthTLS(t *tls.Config) server.Option {
-	return setServerOption(tlsAuth{}, t)
+	return server.SetOption(tlsAuth{}, t)
 }
 
 // MaxConn specifies maximum number of max simultaneous connections to server
 func MaxConn(n int) server.Option {
-	return setServerOption(maxConnKey{}, n)
+	return server.SetOption(maxConnKey{}, n)
 }
 
 // Listener specifies the net.Listener to use instead of the default
 func Listener(l net.Listener) server.Option {
-	return setServerOption(netListener{}, l)
+	return server.SetOption(netListener{}, l)
 }