node 10 additional updates

Author: lkasso

examples/led.js

@@ -1,7 +1,7 @@
 var MetaWear = require('../index')//require('metawear');
 
 // If you know the MAC address, you can uncomment this line
-MetaWear.discoverByAddress('f9:b5:f9:81:3f:77', function(device) {
+MetaWear.discoverByAddress('c8:4b:aa:97:50:05', function(device) {
 //MetaWear.discover(function (device) {
   device.connectAndSetUp(function (error) {
     var pattern = new MetaWear.LedPattern();