[flat discount] added flat discount in print format and all selling doctypes

selling/doctype/quotation/quotation.txt

@@ -2,7 +2,7 @@
  {
   "creation": "2013-05-24 19:29:08", 
   "docstatus": 0, 
-  "modified": "2013-12-14 17:25:46", 
+  "modified": "2013-12-26 17:54:55", 
   "modified_by": "Administrator", 
   "owner": "Administrator"
  }, 
@@ -458,6 +458,13 @@
   "print_hide": 1, 
   "read_only": 1
  }, 
+ {
+  "doctype": "DocField", 
+  "fieldname": "flat_discount", 
+  "fieldtype": "Currency", 
+  "label": "Flat Discount", 
+  "options": "Company:company:default_currency"
+ }, 
  {
   "doctype": "DocField", 
   "fieldname": "totals", 
@@ -863,7 +870,6 @@
   "cancel": 0, 
   "create": 0, 
   "doctype": "DocPerm", 
-  "match": "customer", 
   "role": "Customer", 
   "submit": 0, 
   "write": 0

selling/doctype/sales_order/sales_order.txt

@@ -2,7 +2,7 @@
  {
   "creation": "2013-06-18 12:39:59", 
   "docstatus": 0, 
-  "modified": "2013-11-03 14:20:16", 
+  "modified": "2013-12-26 17:55:43", 
   "modified_by": "Administrator", 
   "owner": "Administrator"
  }, 
@@ -477,6 +477,13 @@
   "read_only": 1, 
   "width": "150px"
  }, 
+ {
+  "doctype": "DocField", 
+  "fieldname": "flat_discount", 
+  "fieldtype": "Currency", 
+  "label": "Flat Discount", 
+  "options": "Company:company:default_currency"
+ }, 
  {
   "doctype": "DocField", 
   "fieldname": "totals",