List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=-time_start&page=286
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

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                "is_public": true,
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            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2014-08-31T20:15:18.996344Z",
            "ended": "2015-04-15T12:30:24.363831Z",
            "start_waiting": "2014-08-31T20:15:18.554690Z",
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}