Added reference_doctype and reference_name to link Bulk Email to Salary Slip
diff --git a/erpnext/hr/doctype/process_payroll/process_payroll.py b/erpnext/hr/doctype/process_payroll/process_payroll.py
index 12e5c07..de41530 100644
--- a/erpnext/hr/doctype/process_payroll/process_payroll.py
+++ b/erpnext/hr/doctype/process_payroll/process_payroll.py
@@ -127,7 +127,7 @@
 		submitted_ss = self.format_as_links(list(set(all_ss) - set(not_submitted_ss)))
 		if submitted_ss:
 			log = """
-				<b>Salary Slips Submitted %s:</b>
+				<b>Salary Slips Submitted:</b> <br><br>%s
 				""" % ('<br>'.join(submitted_ss))
 
 		if not_submitted_ss:
diff --git a/erpnext/hr/doctype/salary_slip/salary_slip.py b/erpnext/hr/doctype/salary_slip/salary_slip.py
index 39adedd..0c1f8c8 100644
--- a/erpnext/hr/doctype/salary_slip/salary_slip.py
+++ b/erpnext/hr/doctype/salary_slip/salary_slip.py
@@ -214,6 +214,7 @@
 		if receiver:
 			subj = 'Salary Slip - ' + cstr(self.month) +'/'+cstr(self.fiscal_year)
 			frappe.sendmail([receiver], subject=subj, message = _("Please see attachment"),
-				attachments=[frappe.attach_print(self.doctype, self.name, file_name=self.name)], bulk=True)
+				attachments=[frappe.attach_print(self.doctype, self.name, file_name=self.name)], 
+				bulk=True, reference_doctype= self.doctype, reference_name= self.name)
 		else:
 			msgprint(_("{0}: Employee email not found, hence email not sent").format(self.employee_name))