Add missing import.

git-svn-id: https://svn.erp5.org/repos/neo/trunk@1873 71dcc9de-d417-0410-9af5-da40c76e7ee4

neo/master/transactions.py

@@ -17,6 +17,7 @@
 
 from time import time, gmtime
 from struct import pack, unpack
+from neo import logging
 from neo import protocol
 
 class Transaction(object):