troveclient is showing output for various commands in dictionary format

troveclient is showing output for various commands in dictionary format instead of earlier row-column format.

for example

The current output is

$ trove list
[
  {
    "status": "ACTIVE",
    "name": "test_vm_2014May08091518",
    "links": [
      {
        "href": "https://10.1.0.8:8779/v1.0/5cc7f344990e4543adf2c329120ec3c1/instances/77dd24cc-3136-4386-89b8-4f674b33d8c7",
        "rel": "self"
      },
      {
        "href": "https://10.1.0.8:8779/instances/77dd24cc-3136-4386-89b8-4f674b33d8c7",
        "rel": "bookmark"
      }
    ],
    "volume": {
      "size": 2
    },
    "flavor": {
      "id": "6",
      "links": [
        {
          "href": "https://10.1.0.8:8779/v1.0/5cc7f344990e4543adf2c329120ec3c1/flavors/6",
          "rel": "self"
        },
        {
          "href": "https://10.1.0.8:8779/flavors/6",
          "rel": "bookmark"
        }
      ]
    },
    "id": "77dd24cc-3136-4386-89b8-4f674b33d8c7",
    "datastore": {
      "version": "5.5",
      "type": "mysql"
    }
  },
  {
    "status": "ACTIVE",
    "name": "test_vm_2014May12080822",
    "links": [
      {
        "href": "https://10.1.0.8:8779/v1.0/5cc7f344990e4543adf2c329120ec3c1/instances/c2dc18df-6641-4c6a-a3f4-f7cc9ca65be2",
        "rel": "self"
      },
      {
        "href": "https://10.1.0.8:8779/instances/c2dc18df-6641-4c6a-a3f4-f7cc9ca65be2",
        "rel": "bookmark"
      }
    ],
    "volume": {
      "size": 2
    },
    "flavor": {
      "id": "6",
      "links": [
        {
          "href": "https://10.1.0.8:8779/v1.0/5cc7f344990e4543adf2c329120ec3c1/flavors/6",
          "rel": "self"
        },
        {
          "href": "https://10.1.0.8:8779/flavors/6",
          "rel": "bookmark"
        }
      ]
    },
    "id": "c2dc18df-6641-4c6a-a3f4-f7cc9ca65be2",
    "datastore": {
      "version": "5.5",
      "type": "mysql"
    }
  }
]

whereas the expected output is
$ trove list
+--------------------------------------+-------------------------+-----------+-------------------+--------+-----------+------+
| ID | Name | Datastore | Datastore Version | Status | Flavor ID | Size |
+--------------------------------------+-------------------------+-----------+-------------------+--------+-----------+------+
| 77dd24cc-3136-4386-89b8-4f674b33d8c7 | test_vm_2014May08091518 | mysql | 5.5 | ACTIVE | 6 | 2 |
| c2dc18df-6641-4c6a-a3f4-f7cc9ca65be2 | test_vm_2014May12080822 | mysql | 5.5 | ACTIVE | 6 | 2 |
+--------------------------------------+-------------------------+-----------+-------------------+--------+-----------+------+