[FIX] point_of_Sale: Fixed the issue of taxes in multicompany enviorment (Maintenance case: 584326)
[FIX] point_of_Sale: Fixed the issue of taxes in multicompany enviorment (Maintenance case: 584326)

bzr revid: han@tinyerp.com-20130122123548-o9zikev7zpyv3yzq
podemos-info/odoo,podemos-info/odoo,podemos-info/odoo,podemos-info/odoo,podemos-info/odoo,podemos-info/odoo,podemos-info/odoo