update express (butlerx#16)

app.js

@@ -81,6 +81,7 @@ process.on('uncaughtException', e => {
 let httpserv;
 
 const app = express();
+app.use(require('serve-favicon')(`${__dirname}/public/favicon.ico`));
 // For using wetty at /wetty on a vhost
 app.get('/wetty/ssh/:user', (req, res) => {
   res.sendfile(`${__dirname}/public/wetty/index.html`);

package.json

@@ -2,22 +2,23 @@
   "name": "wetty",
   "version": "0.2.0",
   "dependencies": {
-    "express": "3.5.1",
-    "socket.io": "^1.3.7",
+    "express": "^4.15.3",
+    "optimist": "^0.6",
     "pty.js": "^0.3.0",
-    "optimist": "^0.6"
+    "serve-favicon": "^2.4.3",
+    "socket.io": "^1.3.7"
   },
   "devDependencies": {
-    "load-grunt-tasks": "^3.0",
-    "grunt": "^0.4",
-    "grunt-shell": "^1.1",
-    "grunt-mkdir": "^0.1",
-    "grunt-git": "^0.3",
-    "grunt-contrib-clean": "^0.6",
     "eslint": "3.16.1",
     "eslint-config-standard": "6.2.1",
     "eslint-plugin-promise": "3.5.0",
-    "eslint-plugin-standard": "2.1.0"
+    "eslint-plugin-standard": "2.1.0",
+    "grunt": "^0.4",
+    "grunt-contrib-clean": "^0.6",
+    "grunt-git": "^0.3",
+    "grunt-mkdir": "^0.1",
+    "grunt-shell": "^1.1",
+    "load-grunt-tasks": "^3.0"
   },
   "description": "Wetty = Web + tty. Terminal access in browser over http/https ",
   "main": "app.js",