Use items() instead of iteritems()
Use items() instead of iteritems()

The utils.py was using obj.iteritems,
which has been removed in python 3 [1].
This replaces that with obj.items.

[1] https://wiki.python.org/moin/Python3.0#Built-In_Changes

Change-Id: I7cc501b4c3e3c661a06450f382b6640755db1c92

openstack/keystone,mahak/keystone,mahak/keystone,mahak/keystone,openstack/keystone,openstack/keystone