docs: function stopDrone(userid, appid, callback) {
      droneModel.getProcessed({user: userid, name: appid}, function(err, result) {
        if (err)
          return callback(err);
  
        if (result.length == 1) {
          if (!result[0].started) {
            callback({message: 'Drone is already stopped'});
          }else{
            //need to namespace apps to allow for two users with same app name
            drone.stop(appid, function(err, response) {
              if (err)
                return callback(err);
  
              result[0].started = false;
              callback(null, result[0]);
            });
          }
        }else{
          callback({message: 'No drone matching ' + userid + '/' + appid});
        }
      });
    }