Subscription rendering in v2 does not include attrsFormat field

[crbrox]

It seems attrsFormat field is missing in the JSON representation when getting a subscription

$ payload='
{
  "subject": {
    "entities": [
      {
        "id": "E1"
      }
    ],
    "condition": {
      "attrs": [ "A1" ]
    }
  },
  "notification": {
    "http": {
      "url": "http://localhost:12234/notify"
    },
    "attrs": [ "A1", "A5", "sub4_with_keyValues" ]
  },
  "attrsFormat": "keyValues",
  "expires": "2050-04-05T14:00:00.00Z"
}'

$ curl -i  localhost:1026/v2/subscriptions -H "content-type: application/json" --data "$payload"
HTTP/1.1 201 Created
Connection: Keep-Alive
Content-Length: 0
Location: /v2/subscriptions/5731a934dcd9671a98001e11
Fiware-Correlator: 3c93c030-1691-11e6-8412-0800274b39cb
Date: Tue, 10 May 2016 09:26:12 GMT

$ curl localhost:1026/v2/subscriptions/5731a934dcd9671a98001e11
{"id":"5731a934dcd9671a98001e11","expires":"2050-04-05T14:00:00.00Z","status":"active",
"subject":{"entities":[{"id":"E1","idPattern":"","type":""}],"condition":{"attrs":["A1"]}},
"notification":{"attrs":["A1","A5","sub4_with_keyValues"],
"http":{"url":"http://localhost:12234/notify"}}}

[fgalan]

Probably we don't need new .test for this, but adjusting the ones we already have. This probably makes this easier to fix (new .test use to consume time).

[fgalan]

Fixed in PR #2177