Updated openstack/openstack
Project: openstack/python-heatclient  06dbfe2af6d709c863414a765fd7c246d4f7cf31
null
get_file_contents: use six.itervalues() instead of dict.itervalues()

This is compatible with both Python 2 and 3.

Change-Id: I7429efe3ee5fd1dabf9bb607dcd3860057a8569f