Update socket.io dependency version

server/package.json

@@ -5,9 +5,10 @@
   "version": "0.0.1",
   "dependencies": {
     "sequelize": "2.0.0-rc3",
-    "socket.io": "1.2.x",
+    "socket.io": "^1.2.1",
     "async" : "0.9.x",
     "request" : "2.51.x",
     "underscore" : "1.7.x"
+    "socket.io": "^1.2.1",
   }
 }