Fail to download/process database

[jiachenlei]

1. I fail to download dataset cub with your code for the official website for downloading dataset returns 404 files not found...
2. I fail to run train_baseline.py with the terminal command:
   python3 train_baseline.py --method gnnnet --dataset multi --testset cub --name multi_TESTSET_ori_METHOD --warmup model722
   The program raises an exception which tells that it cant' find some images in folder cars_train, then i find the problem that the process.py run "wget" to download database cars and however the tgz was named cars_train.tgz.1 which causes the problem.

I report these issues to help and let you be awareness of it , best wishes.