Update changelog

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@7592 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5/bootstrap/erp5_core/bt/change_log

+2006-06-02 Kevin
+* Move OpenOffice Importer tool from erp5_core to erp5_base.
+* Update BT description.
+
 2006-06-01 Kevin
 * Add a description to explain the purpose of "Open Office Generic Importer".