Asynchronous switch functions (Make sure the DOM is parsed after switching) (#79)

* Make sure the DOM is parsed after switching

* Fix reload-link in the example

example/index.html

@@ -10,7 +10,7 @@
     <div class='body'>
       <h1>Index</h1>
       Hello.
-      Go to <a href='page2.html'>Page 2</a> and view your console to see Pjax events.
+      Go to <a href='page2.html' class="js-Pjax">Page 2</a> and view your console to see Pjax events.
       Clicking on <a href='index.html'>this page</a> will just reload the page entierly.
     </div>
   </body>