List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=-board_size&page=3529
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
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            "description": "大会を開いてほしいとリクエストをいただいたので、少々急ですが第4回珊瑚杯を開催します!第3回と同様にハンデ戦です。今回は時間制限を「単純持ち時間式」としてみます。対戦相手と協力して時間内に打ち終えるようにしてみてください。総当たり戦としますので、参加人数によっては少し忙しいかもしれません。",
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            "name": "Meijin Nines Title Tournament 2015",
            "director": {
                "id": 40318,
                "username": "gamesorry",
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                "name": "OGS Title Tournaments",
                "summary": "Would you like to compete with hundreds of players in epic tournaments and become the Honinbo, Meijin, Kisei, Tianyuan, Mingren or Kuksu? Join us!",
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