Cannot filter on pools.

[Keisuke Yamamoto]

Get Pools API is not worked, when filtering by name.

* Reproduce the bug:
 1. Create Pool
   - POST /v2/pools
     - name: example pool
   - POST /v2/pools
     - name: dummy pool

 2. GET Pools with filter.
   - GET /v2/pools?name=dummy%20pool
   - GET /v2/pools?name=dum*

* Actual Result:
  All pools are returned.

* Expected Result:
  List of pools is "dummy pool" only.

* Additional note:

# curl -s -X GET http://127.0.0.1:9001/v2/pools?name=dum* -H "Accept: application/json" -H "Content-Type: application/json" | python -mjson.tool
{
    "links": {
        "self": "http://127.0.0.1:9001/v2/pools?name=dum%2A"
    },
    "pools": [
        {
            "attributes": {},
            "created_at": "2015-07-24T01:09:55.000000",
            "description": null,
            "id": "794ccc2c-d751-44fe-b57f-8894c9f5c842",
            "links": {
                "self": "http://127.0.0.1:9001/v2/pools/794ccc2c-d751-44fe-b57f-8894c9f5c842"
            },
            "name": "default",
            "ns_records": [
                {
                    "hostname": "ns2.example.org.",
                    "priority": 10
                }
            ],
            "project_id": null,
            "updated_at": "2015-07-27T05:48:39.000000"
        },
        {
            "attributes": {},
            "created_at": "2015-07-27T07:45:38.000000",
            "description": null,
            "id": "6b73f7ce-d2db-4586-b5e2-507d2fe1c800",
            "links": {
                "self": "http://127.0.0.1:9001/v2/pools/6b73f7ce-d2db-4586-b5e2-507d2fe1c800"
            },
            "name": "example pool",
            "ns_records": [
                {
                    "hostname": "ns1.exmple.org.",
                    "priority": 2
                },
                {
                    "hostname": "ns2.exmple.org.",
                    "priority": 3
                }
            ],
            "project_id": "noauth-project",
            "updated_at": null
        },
        {
            "attributes": {},
            "created_at": "2015-07-27T07:47:45.000000",
            "description": null,
            "id": "96134ce5-dd50-4e7f-bcb2-1fdb649888ea",
            "links": {
                "self": "http://127.0.0.1:9001/v2/pools/96134ce5-dd50-4e7f-bcb2-1fdb649888ea"
            },
            "name": "dummy pool",
            "ns_records": [
                {
                    "hostname": "ns2.exmple.org.",
                    "priority": 3
                },
                {
                    "hostname": "ns1.exmple.org.",
                    "priority": 2
                }
            ],
            "project_id": "noauth-project",
            "updated_at": null
        }
    ]
}

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/207452

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/207452
Committed: https://git.openstack.org/cgit/openstack/designate/commit/?id=2c7c03f73b8f474a436373e429253b8f706522e3
Submitter: Jenkins
Branch: master

commit 2c7c03f73b8f474a436373e429253b8f706522e3
Author: keisuke_yamamoto <email address hidden>
Date: Thu Jul 30 22:07:32 2015 +0900

    Enable filter on get pools

    Can filter on Get Pools API by name.

    Change-Id: I90d0f0b8aebf511141fbb79e1c79745276e0b791
    Closes-Bug: #1478487