[minor] merged with master branch

buying/doctype/purchase_order/purchase_order.txt

@@ -2,7 +2,7 @@
  {
   "creation": "2013-05-21 16:16:39", 
   "docstatus": 0, 
-  "modified": "2013-08-09 14:45:51", 
+  "modified": "2013-09-12 18:34:54", 
   "modified_by": "Administrator", 
   "owner": "Administrator"
  }, 
@@ -132,6 +132,7 @@
   "fieldtype": "Date", 
   "in_filter": 1, 
   "label": "Purchase Order Date", 
+  "no_copy": 1, 
   "oldfieldname": "transaction_date", 
   "oldfieldtype": "Date", 
   "reqd": 1, 

buying/doctype/supplier/supplier.py

@@ -132,14 +132,10 @@ class DocType(TransactionBase):
 			sql("delete from `tabAddress` where name=%s",(rec['name']))
 	
 	def delete_supplier_contact(self):
-		for rec in sql("select * from `tabContact` where supplier=%s", (self.doc.name,), as_dict=1):
-			sql("delete from `tabContact` where name=%s",(rec['name']))
-			
-	def delete_supplier_communication(self):
-		webnotes.conn.sql("""\
-			delete from `tabCommunication`
-			where supplier = %s and customer is null""", self.doc.name)
-			
+		for contact in webnotes.conn.sql_list("""select name from `tabContact` 
+			where supplier=%s""", self.doc.name):
+				webnotes.delete_doc("Contact", contact)
+	
 	def delete_supplier_account(self):
 		"""delete supplier's ledger if exist and check balance before deletion"""
 		acc = sql("select name from `tabAccount` where master_type = 'Supplier' \

buying/doctype/supplier/supplier.txt

@@ -2,7 +2,7 @@
  {
   "creation": "2013-01-10 16:34:11", 
   "docstatus": 0, 
-  "modified": "2013-09-02 16:25:44", 
+  "modified": "2013-09-10 10:53:50", 
   "modified_by": "Administrator", 
   "owner": "Administrator"
  }, 
@@ -137,13 +137,15 @@
   "fieldname": "communication_history", 
   "fieldtype": "Section Break", 
   "label": "Communication History", 
-  "options": "icon-comments"
+  "options": "icon-comments", 
+  "print_hide": 1
  }, 
  {
   "doctype": "DocField", 
   "fieldname": "communication_html", 
   "fieldtype": "HTML", 
-  "label": "Communication HTML"
+  "label": "Communication HTML", 
+  "print_hide": 1
  }, 
  {
   "doctype": "DocField", 
@@ -210,7 +212,8 @@
   "fieldtype": "Table", 
   "hidden": 1, 
   "label": "Communications", 
-  "options": "Communication"
+  "options": "Communication", 
+  "print_hide": 1
  }, 
  {
   "cancel": 0,