Profile JSON

GET /profile/<USERNAME>
>>>
200 Ok
{
  "user_id": 1,
  "username": <USERNAME>,
  "first_name": "John",
  "last_name": "Doe",
  "birth_date": "2016-01-30",
  "tweets": [
    {
        "id": 38811,
        "text": "Tweet test",
        "date": "2016-06-01T05:13:00",
        "uri": "/tweet/38811"
    },
    {
        "id": 18832,
        "text": "Other tweet ",
        "date": "2016-06-01T05:22:00",
        "uri": "/tweet/18832"
    }
  ],
  "tweet_count": 2
}