v0.1.21

Transformers v0.1.21

Diff since v0.1.20

Closed issues:

• MbedTLS error code -76: NET - Reading information from the socket failed (#107)
• Evaluation into the closed module Transformers breaks incremental compilation (enable_gpu) (#108)

Merged pull requests:

• gpt / gpt2 textencoder and hgf gpt2 tokenizer (#111) (@chengchingwen)