Added status field in sales invoice and purchase invoice
diff --git a/erpnext/patches.txt b/erpnext/patches.txt
index b53bbc6..57dbc59 100644
--- a/erpnext/patches.txt
+++ b/erpnext/patches.txt
@@ -346,3 +346,4 @@
 erpnext.patches.v7_0.repost_gle_for_pi_with_update_stock #2016-11-01
 erpnext.patches.v7_1.add_account_user_role_for_timesheet
 erpnext.patches.v7_0.set_base_amount_in_invoice_payment_table
+erpnext.patches.v7_1.update_invoice_status
\ No newline at end of file