+ $Id: CHANGELOG,v 1.18 2001/03/04 02:48:45 bettina Exp $

11/29/2000: added tax column to inv_categorys
            update layout             
12/02/2000: added tables inv_order,inv_orderpos
            new function product orders
12/03/2000: added select own address in preferences
12/04/2000: added table inv_delivery
            added create delivery to orders
12/09/2000: new table inv_invoice
            added tax column to table inv_orderpos
            added create invoice to orders
12/11/2000: new table inv_deliverypos; is needed for delivery listing
12/20/2000: update delivery list + preferences
12/28/2000: new table inv_invoicepos; needed for invoice listing
12/30/2000: update products/retail displaying
            change inv_products category_column to varchar(3) to save the cat_id
01/01/2001: added columns level, main_cat, par_cat to inv_categorys 
            posibility to create sub_categories
01/07/2001: renamed all tables to phpgw_
01/26/2001: changed categories to use phpgw_categories
            removed table phpgw_inv_categorys
            included access plus search_function to categories
            pdf_print_support
01/26/2001: release 0.8.2 on sourceforge
02/07/2001: updated table_structur phpgw_inv_products
02/16/2001: update table phpgw_inv_orders added column owner,
            changed column_types in tables phpgw_inv_invoice/delivery/orderpos/invoicepos/deliverypos
            added ability to generate order/invoice/delivery IDs
02/21/2001: removed table phpgw_inv_dist while using the contacts class plus the addressbook tables to store distributors data 
            work on distributors_sites 
            included view_link for products
02/22/2001: added column date,serial_number to phpgw_inv_products to store the date when bought a product
02/24/2001: update table structur
02/25/2001: update invoice/delivery to use the contacts class
03/04/2001: added ftp_, selling_date_fields to products, ftp_/www_mirror to distributors