added --port flag to node.js server

Author: Afaq Tariq

app/server/index.js

@@ -5,7 +5,8 @@ var path    = require('path')
 var spawn   = require('child_process').spawn
 var fs      = require('fs')
 var ws      = require('websocket').server
-var port    = process.env.LINUX_DASH_SERVER_PORT || 80
+var args    = require('yargs').argv
+var port    = args.port || process.env.LINUX_DASH_SERVER_PORT || 80
 
 server.listen(port, function() {
   console.log('Linux Dash Server Started on port ' + port + '!');

package.json

@@ -23,7 +23,8 @@
   "homepage": "https://github.com/afaqurk/linux-dash",
   "dependencies": {
     "express": "^4.11.1",
-    "websocket": "^1.0.23"
+    "websocket": "^1.0.23",
+    "yargs": "^8.0.1"
   },
   "devDependencies": {
     "angular": "1.3.4",