[FIX] sale - copy customer ref instead of order name in sale_line_inv…

…oice wizard

lp bug: https://launchpad.net/bugs/1188528 fixed

bzr revid: yannick.vaucher@camptocamp.com-20130607092405-1roxnirhtfcxo0d3

addons/sale/wizard/sale_line_invoice.py

@@ -61,7 +61,7 @@ def make_invoice(order, lines):
             else:
                 pay_term = False
             inv = {
-                'name': order.name,
+                'name': order.client_order_ref or '',
                 'origin': order.name,
                 'type': 'out_invoice',
                 'reference': "P%dSO%d" % (order.partner_id.id, order.id),