Add alt text to Elephants images (#1292)

js/common.js

@@ -426,6 +426,7 @@ $(document).ready(function () {
                             link.attr('href', photo.url);
                             link.attr('title', photo.title);
                             image = $('<img>');
+                            image.attr('alt', '');
                             image.attr('src', 'data:image/jpeg;base64,' + photo.data);
                             $(node).append(link.append(image));
                         }