* Fix the problem of project admin group.

module/group/js/manageprojectadmin.js

@@ -15,6 +15,8 @@ function addItem(obj)
 
 function deleteItem(obj)
 {
+    if($("table tr").size() < 3) return false;
+
     var $currentLine= $(obj).closest('tr');
     $currentLine.remove();
 }

module/group/view/manageprojectadmin.html.php

@@ -72,7 +72,7 @@
           <td class='text-center form-actions' colspan='5'>
             <?php
             echo html::submitButton();
-            echo html::linkButton($lang->goback, $this->createLink('group', 'browse'), '', '', 'btn btn-wide');
+            echo html::linkButton($lang->goback, $this->createLink('group', 'browse'), 'self', '', 'btn btn-wide');
             echo html::hidden('foo'); // Just a var, to make sure $_POST is not empty.
             ?>
           </td>