Bug Fixes and Minor Adjustments

• Fixed: voiding a job transfer or invoice will now remove any nonstock item purchase invoice links.
• P10: Fixed: receiving payments for an invoice past of terms discount date was leaving the discount amount on the receivable which would fail to post due to overpayment.
• Changed Purchase Orders to show the pieces shipped field by default.
• P10: Changed PO to not require terms before VI conversion. 
• Changed order to invoice conversion to select full quantity of the items selected to convert, even if that item has an un-received PO.
• P10: job module bug fixes and improvements.