Add payment_type_cost on invoce_speedup patch

invoice_speedup.diff

@@ -499,3 +499,24 @@ diff -r 95d77335bdd5 trytond/trytond/modules/analytic_invoice/invoice.py
 
 
  class AnalyticAccountEntry:
+diff -r 4b26ee82dda3 trytond/trytond/modules/account_payment_type_cost/invoice.py
+--- a/trytond/trytond/modules/account_payment_type_cost/invoice.py	Thu Dec 24 16:20:29 2015 +0100
++++ b/trytond/trytond/modules/account_payment_type_cost/invoice.py	Fri Feb 26 15:35:11 2016 +0100
+@@ -10,7 +10,7 @@
+     'Invoice'
+     __name__ = 'account.invoice'
+
+-    def create_move(self):
++    def get_move(self):
+         pool = Pool()
+         Line = pool.get('account.invoice.line')
+         if self.payment_type and self.payment_type.has_cost:
+@@ -23,7 +23,7 @@
+                 line.save()
+         # Taxes must be recomputed before creating the move
+         self.update_taxes([self])
+-        return super(Invoice, self).create_move()
++        return super(Invoice, self).get_move()
+
+     def _get_payment_type_cost_line(self):
+         " Returns invoice line with the cost"