Change the fallback on server wait to 2 seconds
Change the fallback on server wait to 2 seconds

The original iterate_timeout default was 2 seconds - but the
introduction of per-service cache timing support falls back to 0 - which
is pretty extreme. Set the fallback to 2.

Change-Id: I0163e3a3397e5a7bca22bd4bbaaca63509a072b6

stackforge/python-openstacksdk,stackforge/python-openstacksdk,openstack-infra/shade,openstack/python-openstacksdk,openstack/python-openstacksdk,openstack-infra/shade,dtroyer/python-openstacksdk,dtroyer/python-openstacksdk