Do not go to next party unless all lines are reconciled
When using the reconcile wizard, once a reconciliation is created for a party the wizard shows then next one. This is right when it is possible to create a single reconciliation for all the lines of the party but it may be the case that the user want's to create more than one reconciliation (one full and another with writeoff, or one per payment) for the same party.
In order to ease this behaviour I propose to not show the next party lines unless all the lines of the party have been reconciled. This behaviour also remains the user that there are still pending lines for the party despite it's reconciliation and does not require to re-run the wizard multiple time to ensure that everything is reconciled.