update components

dashboard-ui/bower_components/paper-icon-button/demo/index.html

@@ -82,6 +82,22 @@ subject to an additional IP rights grant found at http://polymer.github.io/PATEN
           <paper-icon-button icon="alarm-on" title="wake up" class="giant"></paper-icon-button>
         </template>
       </demo-snippet>
+
+      <h3>Buttons can be used as a link</h3>
+      <demo-snippet class="centered-demo">
+        <template>
+          <a href="https://www.polymer-project.org" tabindex="-1">
+            <paper-icon-button icon="polymer"></paper-icon-button>
+          </a>
+          <style>
+            a paper-icon-button,
+            a:active paper-icon-button,
+            a:visited paper-icon-button {
+              color: #000000;
+            }
+          </style>
+        </template>
+      </demo-snippet>
     </div>
   </body>
 </html>