[feature] Ability to set UOM as Integer-only and related validations.

accounts/doctype/purchase_invoice/purchase_invoice.py

@@ -58,6 +58,7 @@ class DocType(BuyingController):
 		self.check_for_acc_head_of_supplier()
 		self.check_for_stopped_status()
 		self.validate_with_previous_doc()
+		self.validate_uom_is_integer("uom", "qty")
 
 		if not self.doc.is_opening:
 			self.doc.is_opening = 'No'

accounts/doctype/sales_invoice/sales_invoice.py

@@ -60,6 +60,8 @@ class DocType(SellingController):
 		self.so_dn_required()
 		self.validate_proj_cust()
 		self.validate_with_previous_doc()
+		self.validate_uom_is_integer("stock_uom", "qty")
+
 		sales_com_obj = get_obj('Sales Common')
 		sales_com_obj.check_stop_sales_order(self)
 		sales_com_obj.check_active_sales_items(self)

accounts/doctype/sales_invoice_item/sales_invoice_item.txt

@@ -2,7 +2,7 @@
  {
   "creation": "2013-06-04 11:02:19", 
   "docstatus": 0, 
-  "modified": "2013-07-10 14:54:19", 
+  "modified": "2013-07-25 16:32:10", 
   "modified_by": "Administrator", 
   "owner": "Administrator"
  }, 
@@ -107,9 +107,10 @@
  {
   "doctype": "DocField", 
   "fieldname": "stock_uom", 
-  "fieldtype": "Data", 
+  "fieldtype": "Link", 
   "in_list_view": 0, 
   "label": "UOM", 
+  "options": "UOM", 
   "read_only": 1
  }, 
  {