added a fix for the wiki topbar

sass/wiki/_wiki.scss

@@ -12,6 +12,7 @@ div.wiki-wrapper {
 
       &:empty {
         display: none !important;
+        border-bottom: 0;
       }
 
       a {

simplewiki_base.html

@@ -137,8 +137,8 @@
     </%block>
 
     <section class="wiki-body">
-      <header>
         %if wiki_article is not UNDEFINED:
+        <header>
           %if wiki_article.locked:
           <p><strong>This article has been locked</strong></p>
           %endif
@@ -160,8 +160,8 @@
               <input type="button" onclick="javascript:location.href='${reverse("wiki_history", args=[wiki_article.get_url(),1])}'" value="History" class="button history" />
             </li>
           </ul>
-        %endif
         </header>
+        %endif
 
       <h1 class="wiki-title"><%block name="wiki_page_title"/></h1>