#16984: Removing a media folder doesn't work

--HG--
branch : dev

src/Orchard.Web/Modules/Orchard.Media/Views/Admin/Index.cshtml

@@ -3,7 +3,7 @@
 
 <h1>@Html.TitleForPage(T("Manage Media Folders").ToString())</h1>
     @Html.ValidationSummary()
-
+	@using (Html.BeginFormAntiForgeryPost()) { 
     <fieldset class="bulk-actions">
         <label for="publishActions">@T("Actions:")</label>
         <select id="Select1" name="publishActions">
@@ -50,3 +50,4 @@
             }
         </table>
     </fieldset>
+	}