Adds support for Foreign Exchange Spot Transactions.
Adds menu entries for Account Group and Tax Group
Set a alternate payor/payee in invoices
Invalidates the COGS deferral introduced by the anglo saxon module
Set a blocking (No Follow-up) flag on invoices
Comments templates on invoice documents
Compute of total discount on invoices.
Merge Draft Account Invoice.
Generate UBL XML file for customer invoices/refunds