Todos for rain1017/memdb

These are TODOs that are seen in the code

mdbgoose.js
          
            (){
            return Player.countMongoAsync({}); //TODO: callback not called when not pass any arguments
          
      
shard.js
          
            );
        }
        //TODO: possibly loss consistency
        //      if setMulti return failed but
          
          
            .persistentCounter.inc();
        self.logger.debug('persistented %s', key);
    });
};

//TODO: setTimeout is