[Users] changes in database setup scripts

Hello all, i've commited new database setup scripts for mysql and postgresql. Now are the SQL tables generated from a common XML definition, to avoid inconsistencies between the different databases. With the new system is not more necessary to update three different shell scripts for one database table change, hopefully this will lead to fewer bugs. The dbtext integration is still missing, i'll work on this and on further extension of the system in two weeks after the programming course in paris. I've tested the new system with mysql 5.0 and postgresql 8.2, but there are probably still some bugs present. So if you get an database setup script related error from trunk, don't hesitate to complain here or on the devel list. :-) You'll find further informations about this system in the wiki: http://www.openser.org/dokuwiki/doku.php/development:db-schema Best regards, Henning