diff --git a/buying/doctype/supplier/supplier.py b/buying/doctype/supplier/supplier.py
index 75b2e03..ccdeae9 100644
--- a/buying/doctype/supplier/supplier.py
+++ b/buying/doctype/supplier/supplier.py
@@ -132,14 +132,10 @@
 			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' \
diff --git a/hr/doctype/job_applicant/job_applicant.py b/hr/doctype/job_applicant/job_applicant.py
index 9927230..9bf1b96 100644
--- a/hr/doctype/job_applicant/job_applicant.py
+++ b/hr/doctype/job_applicant/job_applicant.py
@@ -21,9 +21,4 @@
 		else:
 			status = "Open"
 			
-		webnotes.conn.set(self.doc, 'status', status)
-
-	def on_trash(self):
-		webnotes.conn.sql("""delete from `tabCommunication` 
-			where job_applicant=%s""", self.doc.name)
-		
\ No newline at end of file
+		webnotes.conn.set(self.doc, 'status', status)
\ No newline at end of file
diff --git a/install_erpnext.py b/install_erpnext.py
index c57a9e2..70cc2aa 100644
--- a/install_erpnext.py
+++ b/install_erpnext.py
@@ -149,6 +149,7 @@
 		exec_in_shell("easy_install pip")
 	
 	exec_in_shell("pip install --upgrade pip")
+	exec_in_shell("pip install --upgrade setuptools")
 	exec_in_shell("pip install --upgrade virtualenv")
 	exec_in_shell("pip install -q %s" % python_modules)
 	
diff --git a/selling/doctype/customer/customer.py b/selling/doctype/customer/customer.py
index fb3c006..d3a263f 100644
--- a/selling/doctype/customer/customer.py
+++ b/selling/doctype/customer/customer.py
@@ -126,14 +126,10 @@
 				webnotes.conn.sql("""delete from `tabAddress` where name=%s""", name)
 	
 	def delete_customer_contact(self):
-		for rec in sql("select * from `tabContact` where customer=%s", (self.doc.name,), as_dict=1):
-			sql("delete from `tabContact` where name=%s",(rec['name']))
+		for contact in webnotes.conn.sql_list("""select name from `tabContact` 
+			where customer=%s""", self.doc.name):
+				webnotes.delete_doc("Contact", contact)
 	
-	def delete_customer_communication(self):
-		webnotes.conn.sql("""\
-			delete from `tabCommunication`
-			where customer = %s and supplier is null""", self.doc.name)
-			
 	def delete_customer_account(self):
 		"""delete customer's ledger if exist and check balance before deletion"""
 		acc = sql("select name from `tabAccount` where master_type = 'Customer' \
@@ -145,7 +141,6 @@
 	def on_trash(self):
 		self.delete_customer_address()
 		self.delete_customer_contact()
-		self.delete_customer_communication()
 		self.delete_customer_account()
 		if self.doc.lead_name:
 			sql("update `tabLead` set status='Interested' where name=%s",self.doc.lead_name)
diff --git a/selling/doctype/lead/lead.py b/selling/doctype/lead/lead.py
index 1aff8c8..da11410 100644
--- a/selling/doctype/lead/lead.py
+++ b/selling/doctype/lead/lead.py
@@ -80,7 +80,6 @@
 		return webnotes.conn.get_value('Sales Email Settings',None,'email_id')
 
 	def on_trash(self):
-		webnotes.conn.sql("""update tabCommunication set lead=null where lead=%s""", self.doc.name)
 		webnotes.conn.sql("""update `tabSupport Ticket` set lead='' where lead=%s""",
 			self.doc.name)
 		
diff --git a/selling/doctype/quotation/quotation.py b/selling/doctype/quotation/quotation.py
index 588d8d6..44a67fa 100644
--- a/selling/doctype/quotation/quotation.py
+++ b/selling/doctype/quotation/quotation.py
@@ -204,11 +204,6 @@
 			print_lst.append(lst1)
 		return print_lst
 	
-	def update_followup_details(self):
-		sql("delete from `tabCommunication Log` where parent = '%s'"%self.doc.name)
-		for d in getlist(self.doclist, 'follow_up'):
-			d.save()
-
 @webnotes.whitelist()
 def make_sales_order(source_name, target_doclist=None):
 	return _make_sales_order(source_name, target_doclist)
diff --git a/utilities/doctype/contact/contact.py b/utilities/doctype/contact/contact.py
index a116edb..84c8a59 100644
--- a/utilities/doctype/contact/contact.py
+++ b/utilities/doctype/contact/contact.py
@@ -55,7 +55,5 @@
 					self.doc.is_primary_contact = 1
 
 	def on_trash(self):
-		webnotes.conn.sql("""update tabCommunication set contact='' where contact=%s""",
-			self.doc.name)
 		webnotes.conn.sql("""update `tabSupport Ticket` set contact='' where contact=%s""",
 			self.doc.name)
\ No newline at end of file