Expose tender ref in POS batch rows; new tender flags

tailbone/views/batch/pos.py

@@ -105,6 +105,7 @@ class POSBatchView(BatchMasterView):
         'tax1_total',
         'tax2_total',
         'tender_total',
+        'tender',
         'void',
         'status_code',
         'timestamp',
@@ -179,6 +180,7 @@ class POSBatchView(BatchMasterView):
         f.set_enum('row_type', self.enum.POS_ROW_TYPE)
 
         f.set_renderer('product', self.render_product)
+        f.set_renderer('tender', self.render_tender)
 
         f.set_type('quantity', 'quantity')
         f.set_type('reg_price', 'currency')