gui/html: Finally implementing restore operation

+ modal jQueryUI-based dialogs for restore operation
+ fixing a small bug with NDN/REST API

Unrelated note: unless we do something with JSON compression, we can't request more
than 10 items at a time (I tried 20, and they already didn't fit).

Change-Id: I9206fa9ac6b02062915a6f6980ad9e69eaa8da3c
diff --git a/gui/html/index.html b/gui/html/index.html
index f006cce..ab2409c 100644
--- a/gui/html/index.html
+++ b/gui/html/index.html
@@ -17,8 +17,11 @@
     <script type="text/javascript" src="js/jquery-ui.min.js"></script>
     <script type="text/javascript" src="js/jquery.class.min.js"></script>
     <script type="text/javascript" src="js/jquery.contextMenu.js"></script>
+    <script type="text/javascript" src="js/jquery.timer.js"></script>
 
     <script type="text/javascript" src="js/ndn-js.js"></script>
+
+    <link rel="shortcut icon" href="/favicon.ico" type="image/x-icon" />
   </head>
 
   <body>
@@ -30,6 +33,7 @@
         <ul>
           <li><a class="needs-get-url" href="#fileList">All files</a></li>
           <li><a class="needs-get-url" href="#folderHistory">Recent actions</a></li>
+          <li><a class="ajax-action" id="reload-button">Reload current view</a></li>
         </ul>
       </nav>
     </header>