* IDEMPIERE-4452 Allow pricelist schema lines to be dependent of vendor categories and to use entries in m_product_po not marked as current vendor if vendor is selected.
* IDEMPIERE-4452 modified update removed
* don't check for accidently set IsIgnoreIsCurrentVendor where it doesn't change anything.
* IDEMPIERE-4452 set IsIgnoreIsCurrentVendor to false ('N') when no business partner given.
Martin Schönbeck