Eoghan Glynn f62caf6db4 Add python-iso8601 to nova and glance dependencies
Nova and glance will shortly require the python-iso8601 package in
order to support non-UTC timestamps in the changes-since filter.

In particular, the following nova patch is blocked by devstack
failing due to the missing dependency:

  https://review.openstack.org/#change,4211

Change-Id: Iaae8812cf19c9ae1ad237b7fda7d99827aca1485
2012-02-19 00:56:41 +00:00
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