Set the correct API version for the V2 identity client

Otherwise, when the keystone endpoints point to the V3 API, IdentityClientJSON
will send V2 requests to the V3 endpoint (e.g. for create_tenant). Which will
of course fail.

Change-Id: I4c7057e50d1f0c942d141a9ae343d4d1be414c94
Closes-bug: #1466906
1 file changed