Convert to ES5, add web server

* No compilation step
 * Beginnings of web interface
 * Simple express server; React-based frontend
 * CommonJS style across codebase; auto-converts to RequireJS for browser
 * Using diffsync for realtime UI
 * "Provider" -> "Plugin"
 * Plugins expose one or more Providers

bin/homebridge

@@ -8,16 +8,10 @@
 
 process.title = 'homebridge';
 
-// Use babel to transparently enable ES6 features
-require("babel/register");
-
 // Find the HomeBridge lib
 var path = require('path');
 var fs = require('fs');
 var lib = path.join(path.dirname(fs.realpathSync(__filename)), '../lib');
 
-// Export HomeBridge as a global for providers
-global.homebridge = require(lib + '/homebridge');
-
-// Run the HomeBridge CLI
-require(lib + '/cli')();
+// Run HomeBridge
+require(lib + '/cli')();