New:
- Support for **transformers** 4.0 and above.
Changed
- added `set_tokenizer to `TransformerPreprocessor`
- show error message when original weights cannot be saved (for `reset_weights` method)
Fixed:
- cast filename to string before concatenating with suffix in `images_from_csv` and `images_from_df` (addresses issue 330)
- resolved import error for `sklearn>=0.24.0`, but `eli5` still requires `sklearn<0.24.0`.