When a user with a domain different than
the domain of the user authorizing heat
to create the resources that ranger defines
is added to a customer template, heat returns
stack validation as the user cannot be found
in the domain of the authorizing user.
Updated to check if use match auth user and
if not, use ranger conf domain as previous
Change-Id: I1406b61c695a5d9a3d94e732b95c2b683c94852b
94170b688e