/// <summary>
 /// default controller
 /// There is no separate service for DateSet - seems like overkill.
 /// Web API converts C# returned types to aptly status-coded HttpResponseMessages wrapping the type.
 /// See: http://www.asp.net/web-api/overview/getting-started-with-aspnet-web-api/action-results
 /// </summary>
 public DateSetController(MongoService _repository)
 {
     repository = _repository;
 }
 /// <summary>
 /// default controller
 /// </summary>
 public InputDataController(MongoService _repository)
 {
     repository = _repository;
 }