add operation analytic to invoice

__init__.py

@@ -2,7 +2,7 @@
 # this repository contains the full copyright notices and license terms.
 
 from trytond.pool import Pool
-from . import purchase, sale
+from . import invoice, purchase, sale
 
 __all__ = ['register']
 
@@ -13,8 +13,10 @@ def register():
         purchase.PurchaseLine,
         sale.Sale,
         sale.SaleLine,
-        module='analytic_operation', type_='model')
+        invoice.Invoice,
+        invoice.InvoiceLine,
+        module='analytic_operations', type_='model')
     Pool.register(
-        module='analytic_operation', type_='wizard')
+        module='analytic_operations', type_='wizard')
     Pool.register(
-        module='analytic_operation', type_='report')
+        module='analytic_operations', type_='report')