2008-11-13 yusei
* Start to develop version 5.4.

2008-10-14 yusei
* Start to develop version 5.3.

2008-09-24 yusei
* Update xml format.

2008-06-27 yusei
* Start to develop version 5.2.

2008-06-26 yusei
* Revise version to 5.1.

2008-06-19 ivan
* Drop email table only if it exists

2008-04-17 yusei
* Revise version to 5.0.

2008-03-14 yusei
* move email and subject table from erp5_dms_mysql_innodb_catalog.