do not force install when installing business templates from repositories

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@7699 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5/bootstrap/erp5_core/SkinTemplateItem/portal_skins/erp5_core/TemplateTool_installBusinessTemplateListAction.xml

@@ -84,7 +84,7 @@ bt_title_list = []\n
 for bt_id in bt_dict.keys():\n
   object_list = bt_dict[bt_id]\n
   bt = context.portal_templates[bt_id]\n
-  bt.install(object_to_update=object_list)\n
+  bt.install(force=0, object_to_update=object_list)\n
   bt_title_list.append(bt.getTitle())\n
 \n
 \n