Endpoint lotto

Here we go again - had some troubles along the way but here should be an acceptable pull request. 

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Endpoint for ten latest lottery winning numbers, prizes, etc.. 

These endpoints work out of the box: `/lottery`, `/lottery/lotto` same as the one before, `/lottery/vikingslotto` and `/lottery/eurojackpot`.

Here's an example of the basic lotto results:

    {
        "results": [
            {
                "date": "11.05.2013",
                "lotto": "5 11 17 21 38 (28)",
                "joker": "9 4 4 1 5",
                "prize": "13.345.370, kr.",
                "link": "http://lotto.is/lottoleikir/urslit/lotto?_date=11.05.2013"
            },
            ...
        ]
    }

Hope you like it  :)