Add the loading screen in the HTML so that it is displayed before JS is loaded

www/poll/index.html

@@ -143,3 +143,13 @@
         <button data-localization-title="poll_commit" id="commit"><span class="fa fa-check"></span></button>
     </div>
 </div>
+
+<div id="loading">
+    <div class="loadingContainer">
+        <img class="cryptofist" src="/customize/cryptofist_small.png" />
+        <div class="spinnerContainer">
+            <span class="fa fa-spinner fa-pulse fa-4x fa-fw"></span>
+        </div>
+        <p data-localization="loading"></p>
+    </div>
+</div>