OCA/account-invoicing — pull request #2 by mcassuto (2014-07-26 02:41:48+00:00)
Title: 7.0 account invoice unique customer ref

This PR add 2 modules:
1/ unique_supplier_invoice_number which set a constraint on (partner_id, supplier_invoice_number) to be unique
2/ account_invoice_unique_customer_ref which set a constraint on (partner_id, name) to be unique, only for out_invoice or out_refund type account_invoice.