List Clusters API should wrap response with 'clusters'

[Vipul Sabhaya]

The list clusters API /v1/clusters doesn't return a wrapped response. It returns a list without an outer attribute 'clusters'

A sample response currently is like this:

[{u'status': u'BUILDING', u'updated': u'2014-12-05T01:21:06.844881', u'name': u'sample_cluster', u'created': u'2014-12-05T01:21:06.844710', u'nic': u'3dc26c0b-03f2-4d2e-ae87-c02d7f33c788', u'volume_size': 10, u'cluster_id': u'd2034c8d-8dae-4cd4-97b3-23afbe40ed0a', u'nodes': []}]

this should be like:

{
    "clusters": [
                    {u'status': u'BUILDING', u'updated': u'2014-12-05T01:21:06.844881', u'name': u'sample_cluster', u'created': u'2014-12-05T01:21:06.844710', u'nic': u'3dc26c0b-03f2-4d2e-ae87-c02d7f33c788', u'volume_size': 10, u'cluster_id': u'd2034c8d-8dae-4cd4-97b3-23afbe40ed0a', u'nodes': []}
     ]
}

[Davide Agnello (dagnello)]

Looking into this fix now.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/148775

[OpenStack Infra (hudson-openstack)]

Change abandoned by Davide Agnello (<email address hidden>) on branch: master
Review: https://review.openstack.org/148775
Reason: new review for this change:
https://review.openstack.org/#/c/152364/