20130922 (Sunday, 22 September 2013)

Added new models finan.JournalEntry (Opération Diverse) and finan.PaymentOrder.

Action.attach_to_actor must now return True if the action is to be bound to that actor. This new subtlety is used by the register and deregister actions of a Registrable to make it possible that we declare ledger.Voucher as Registrable despite the fact that a plain Voucher is not directly registrable, only its children (Invoice, JournalEntry, BankStatement, PaymentOrder, Declaration…). These actions return False to avoid being used on the plain Voucher model.