anchor.diff:              "name": "InvalidMatch",
               "message": "The match does not exist",
               "status": 404
  +        }
  +
  ++ Response 433 (application/json)
  +
  +        {
  +            "name": "BadMatchID",
  +            "message": "This match does not exist or is not active"
  +        }
  +
  +## POST /v1/gamer/matches/{id}/invite/{gamer_id}
  +
  +Allows to invite another person to a match. Should be used with private matches. Matches can be made private by using a filter when listing matches. For instance, you may require a property to be present in the match, such as `customProperties: {"public": 1}` and filter out by `?properties={"public": 1}` when listing the matches available. In that case, if you want to play against a given set of opponents, you may simply limit the maximum number of players, and invite each of your opponents.
  +
  +When someone is invited, a message as follows will be received:
  +
  +    {
  +        "type": "match.invite",
  +        "event": {
  +            "_id": "54784d07a0fcf2000086457d",
  +            "match_id": "54784d07f10c190000cb96e3"
  +            "inviter": {
  +                "gamer_id": "5487260cf45e5f84c7cd7223",
  +                "profile": {
  +                    "displayName": "Guest",
  +                    "lang": "en"
  +                }
  +            }
  +        },
  +        "id": "d2f908d1-40d8-4f73-802e-fe0086bb6cd9"
  +    }
  +
  ++ Request (application/json)
  +
  +    + Parameters
  +        + id (required, string) ... the ID of the match to operate on.
  +        + gamer_id (required, string) ... the ID of the gamer to invite on this match.
  +
  +    + Headers
  +
  +            x-apikey : testgame-key
  +            x-apisecret : testgame-secret
  +            Authorization: Basic gamer_id:gamer_secret
  +
  ++ Response 200 (application/json)
  +
  +        {
  +            "match": {
  +                "_id": "5488121cebc67955fb8f42e2",
  +                "lastEventId": "5488121c4d95f055fbadde9a",
  +                "status": "running"
  +            }
  +        }
  +
  ++ Response 431 (application/json)
  +
  +        {
  +            "message": "The player is already invited to the match",
  +            "name": "AlreadyInvitedToMatch"
  +        }
  +
  ++ Response 433 (application/json)
  +
  +        {
  +            "message": "A passed gamer ID is invalid",
  +            "name": "BadGamerID"
           }
   
   + Response 433 (application/json)
  
positive.code: 
          {
              "match": {
                  "_id": "547452e227a434d1657f8cad",
                  "customProperties": {
                      "type": "coop"
                  },
                  "description": "Sample match for testing",
                  "game_id": "541715e10476afa004fc3b82",
                  "globalState": {
                      "full": 1,
                      "score": 200
                  },
                  "lastEventId": "547452e24a0bd3d1656deb59",
                  "maxPlayers": 3,
                  "events": [],
                  "status": "finished"
              }
          }
  
negative.code: 
          {
              "match": {
                  "_id": "548726461c4158b4c73d43fa",
                  "lastEventId": "5487264710de0db4c71fe752",
                  "status": "finished"
              }
          }
  
  