Plugin support

- Homebridge is now designed to be `npm install`d globally and
executed via "homebridge" script
  - Remove all specific accessories/platforms except for an example
  - New internal structure and "cli"

lib/cli.js

@@ -0,0 +1,29 @@
+var program = require('commander');
+var hap = require("hap-nodejs");
+var version = require('./version');
+var Server = require('./server').Server;
+var Plugin = require('./plugin').Plugin;
+var User = require('./user').User;
+
+'use strict';
+
+module.exports = function() {
+
+  console.log("_____________________________________________________________________");
+  console.log("IMPORTANT: Homebridge is in the middle of some big changes.");
+  console.log("           Read more about it here:");
+  console.log("           https://github.com/nfarina/homebridge/wiki/Migration-Guide");
+  console.log("_____________________________________________________________________");
+  console.log("");
+  
+  program
+    .version(version)
+    .option('-P, --plugin-path [path]', 'look for plugins installed at [path] as well as node_modules', function(p) { Plugin.addPluginPath(p); })
+    .option('-D, --debug', 'turn on debug level logging', function() { logger.setDebugEnabled(true) })
+    .parse(process.argv);
+
+  // Initialize HAP-NodeJS with a custom persist directory
+  hap.init(User.persistPath());
+  
+  new Server().run();
+}