Set start date.

It is required by accounting_workflow scripts.

master/bt5/vifib_base/SkinTemplateItem/portal_skins/vifib_simulation/VifibInvoiceTransaction_postGeneration.xml

@@ -54,7 +54,7 @@
 the new Invoice.\n
 """\n
 from Products.ERP5Type.Message import translateString\n
-\n
+from DateTime import DateTime\n
 if related_simulation_movement_path_list is None:\n
   raise RuntimeError, \'related_simulation_movement_path_list is missing. Update ERP5 Product.\'\n
 \n
@@ -65,6 +65,9 @@ if not invoice.Invoice_isAdvanced():\n
   if not invoice.getResource():\n
     invoice.setResource(invoice.getPriceCurrency())\n
 \n
+if invoice.getStartDate() is None:\n
+  invoice.setStartDate(DateTime())\n
+\n
 # initialize accounting_workflow to planned state\n
 plan_tag = \'%s_plan\' % invoice.getPath()\n
 if invoice.getSimulationState() == \'draft\':\n

master/bt5/vifib_base/bt/revision

-345
\ No newline at end of file
+346
\ No newline at end of file