[FIX] product: overwritten name_search of product.pricelist ignored lang...

[FIX] product: overwritten name_search of product.pricelist ignored lang translations. It worked prior to saas-3 because the pricelist filter in the searchview used a selection widget, which did not care about translations

bzr revid: dle@openerp.com-20140317120126-qx4wrkqfdu3nr3sp