Added example usage of cookies to hello app.

examples/hello/controllers/home.js

@@ -19,3 +19,15 @@ this.another = function() {
 this.redir = function() {
   return redirect('/product/details/1');
 };
+
+this.cookie = function() {
+  var aCookie = this.cookie.get('a') === 'red' ? 'blue' : 'red';
+  var bCookie = (parseInt(this.cookie.get('b'), 10) || 0) + 1;
+  this.cookie.set('a', aCookie);
+  this.cookie.set('b', bCookie);
+  return view({
+    title: 'Cookies',
+    a: aCookie,
+    b: bCookie
+  });
+};

examples/hello/views/home/cookie.html

@@ -0,0 +1,6 @@
+<p>
+  The cookie a's value is: <%= a %>
+</p>
+<p>
+  The cookie b's value is: <%= b %>
+</p>

examples/hello/views/master.html

@@ -11,6 +11,7 @@ <h1><a href="/"><%= title %></a></h1>
       <li><a href="/home/another">An action sharing a view</a></li>
       <li><a href="/product">List of products</a></li>
       <li><a href="/error">Throw an error</a></li>
+      <li><a href="/home/cookie">Cookie example</a></li>
     </ul>
     <div class="main">
       <%= main %>