Updated openstack/openstack
Project: openstack/nova  f75d62012331c650299769ab2389227aa62f43db

Verify next-available limit timestamps are isotime

We format these timestamps using timeutils.isotime() in the limits
view builder, so we should check that in the API sample tests rather
than using the generic timestamp regexp.

Full context here:

  http://lists.openstack.org/pipermail/openstack-dev/2014-April/033971.html

Change-Id: I14bf2eccec38f271eec8d97e8dca6d46f9d93cb3