Add timestamp and log level in log line format string.

git-svn-id: https://svn.erp5.org/repos/neo/branches/prototype3@796 71dcc9de-d417-0410-9af5-da40c76e7ee4

neo/__init__.py

-DEFAULT_LOG_FORMAT = '[%(module)12s:%(lineno)3d] %(message)s'
+DEFAULT_LOG_FORMAT = '%(asctime)s [%(module)12s:%(lineno)3d] %(levelname)8s: %(message)s'