Fix logo on 404 page

Author: ewpatton

404.html

@@ -10,7 +10,7 @@
     <meta property="dc:title" about="/front_page" content="Front Page" />
     <meta content="Drupal 7 (http://drupal.org)" name="Generator" />
     <!-- Title ----------------------- -->
-    <title>User Interface Components - App Inventor for Android</title>
+    <title>Page Not Found - App Inventor for Android</title>
     <!-- Title ----------------------- -->
     <style>
       body{
@@ -417,7 +417,7 @@
       <div id="top_bar">
         <div id="branding">
           <div id="logo"><a class="active" title="Home page" href="http://appinventor.mit.edu"><img
-                alt="Explore MIT App Inventor logo" src="ai2/logo.png" /></a></div>
+                alt="Explore MIT App Inventor logo" src="explore/sites/all/themes/appinventor/logo.png" /></a></div>
         </div>
         <div class="nav clearfix" id="menu-bar">
           <nav role="navigation"> </nav>
@@ -494,4 +494,4 @@ <h1 property="dc:title" datatype="" class="article-title">
       </tbody>
     </table>
   </body>
-</html>
+</html>