Improve logging across all js files

- Based on "winston" logging library
- Removed no longer needed lodash
- Locked npm dependencies to most recent major versions to avoid installs breaking due to node module updates

plejd/scene.manager.js

@@ -1,5 +1,4 @@
 const EventEmitter = require('events');
-const _ = require('lodash');
 
 class SceneManager extends EventEmitter {
     constructor(site, devices) {