List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=-min_ranking&page=74
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

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            "description": "Starts on 01.05.2014. (May 1st). For more information, see http://online-go.com/forum/thread/3493/ .",
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            "description": "Double elimination tournament in two parts! One for double digit kyu players and the other will be for single digit kyu and dan level players. Fight hard - two strikes and you're out!",
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            "description": "Enjoy!",
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