Unavailable pre-trained model configs

[easygold]

Describe the bug
Hi!
I am using finetune library with GPT2 small config and it seems I am not able to download the pre-trained weights anymore.
It seems the required files ['encoder.json', 'vocab.bpe', 'model-sm.jl'] are not accessible.

Minimum Reproducible Example
A short code snippet which reproduces the exception:

from finetune.base_models import GPT2Small
from finetune import Classifier
def main():
    print("Downloading GPT2Small...")
    Classifier(base_model=GPT2Small)

if __name__ == "__main__":
    main()

The web service the library is trying to use to download the files required:

• https://s3.amazonaws.com/bendropbox/gpt2/encoder.json
• https://s3.amazonaws.com/bendropbox/gpt2/vocab.bpe
• https://s3.amazonaws.com/bendropbox/gpt2/model-sm.jl

Expected behavior
When I init my GPT2 classifier model I expect the required files ['encoder.json', 'vocab.bpe', 'model-sm.jl'] are downloaded automatically without errors, instead of getting "HTTP Error 403".

Additional context
@benleetownsend it looks like the library is linked to your s3 private bucket "bendropbox"?

Thanks in advance