| ⇢ | A | IsInvoiceable added |
| ⇢ | A | BillService::findByInvoicable() added | |
| ⇢ | A | IsInvoiceable::invoiceLines() added | |
| ⇢ | A | InvoiceLine::invoiceable() added | |
| ⇢ | A | InvoiceLine::bill() added | |
| ⇢ | A | InvoiceService::findByRelated() added | |
| ⇢ | A | InvoiceService::findByInvoiceable() added |