add compression

package.json

@@ -15,11 +15,12 @@
   },
   "dependencies": {
     "async": "~0.9.0",
+    "compression": "^1.1.0",
+    "express": "4.x",
+    "jade": "~1.5.0",
     "redis": "~0.12.1",
     "sanitizer": "~0.1.1",
-    "socket.io":    "1.x",
     "simplesets": "~1.2.0",
-    "express":      "4.x",
-    "jade":         "~1.5.0"
+    "socket.io": "1.x"
   }
 }

server.js

@@ -5,6 +5,7 @@ var	http = require('http');
 var sys = require('sys');
 var	async = require('async');
 var sanitizer = require('sanitizer');
+var compression = require('compression');
 var express = require('express');
 
 /**************
@@ -24,6 +25,7 @@ var sids_to_user_names = [];
 **************/
 var app = express();
 
+app.use(compression());
 app.use(express.static(__dirname + '/client'));
 
 var server = require('http').Server(app);