Add a page to manage chrono

onyx/tpl/bootstrap/admin/home.tpl

@@ -25,4 +25,14 @@
   {/if}
   </div>
 </div>
+
+<div class="panel panel-default">
+  <div class="panel-heading">
+    <h3 class="panel-title">Chrono</h3>
+  </div>
+  <div class="panel-body">
+    <a href="/{$SALT_ADMIN}/chrono/start" class="btn btn-success">Start</a>
+    <a href="/{$SALT_ADMIN}/chrono/init" class="btn btn-danger">R&eacute;initialiser</a>
+  </div>
+</div>
 {/block}

onyx/tpl/bootstrap/admin/layout.tpl

@@ -11,7 +11,9 @@
 {block name=end}
   <script src="/js/countdown.js"></script>
   <script type="text/javascript">
+  {if isset($END)}
     var end_challenge = new Date({$END * 1000});
+  {/if}
     update_end();
   </script>
 {/block}