Fix message when delete a poll

tpl/poll_deleted.tpl

@@ -1,8 +1,8 @@
 {extends file='page.tpl'}
 
 {block name=main}
-    <div class="alert alert-success text-center">
-        <h2>{$message}</h2>
+    <div class="alert alert-{$message->type} text-center">
+        <h2>{$message->message}</h2>
         <p>{__('Generic', 'Back to the homepage of')} <a href="{$SERVER_URL|html}">{$APPLICATION_NAME|html}</a></p>
     </div>
 {/block}