Updated openstack/openstack
Project: openstack/nova  4787ba6c22bc0e33865cbcfe83cf675e3159b560

Verify created/updated timestamps are isotime

We format these timestamps using timeutils.isotime() in the server
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: Id55f13d8163249275220151dd88c67b47e6176c9