* add a product and producttype table (addresses #1)
* add a person table and reference to customers table (fixes#8)
* use sqlalchemy-migrate's API to setup database and add
configuration for the sqlalchemy-migrate calls to development.ini
and the paste_deploy template (fixes#7)
git-svn-id: file:///var/www/wwwusers/usr01/svn/pyalchemybiz/trunk@7 389c73d4-bf09-4d3d-a15e-f94a37d0667a
