anchor.diff:              x-apikey : testgame-key
               x-apisecret : testgame-secret
               Authorization: Basic gamer_id:gamer_secret
  +
  +    + Body
  +
  +            {
  +                "osn": {"en": "Bye bye!", "fi": "Näkemiin!"}
  +            }
   
   + Response 200 (application/json)
   
  
positive.code: Marks a match as finished, meaning that no other player will be able to join, post moves or even leave the match: consider it frozen and "archived" after this operation.
  This only works if you are currently part of the match, or you will get an HTTP 433.
  
  + Request (application/json)
  
      + Parameters
  
negative.code:             x-apikey : testgame-key
              x-apisecret : testgame-secret
              Authorization: Basic gamer_id:gamer_secret
  
      + Body
  
              {
                  "osn": {"en": "Please join my super duper game!", "it": "Sei invitato!"}
              }
  
  + Response 200 (application/json)
  
  