bump up to 0.5.1

pytorch_pretrained_bert/__init__.py

-__version__ = "0.5.0"
+__version__ = "0.5.1"
 from .tokenization import BertTokenizer, BasicTokenizer, WordpieceTokenizer
 from .tokenization_openai import OpenAIGPTTokenizer
 from .tokenization_transfo_xl import (TransfoXLTokenizer, TransfoXLCorpus)

setup.py

@@ -38,7 +38,7 @@ from setuptools import find_packages, setup
 
 setup(
     name="pytorch_pretrained_bert",
-    version="0.5.0",
+    version="0.5.1",
     author="Thomas Wolf, Victor Sanh, Tim Rault, Google AI Language Team Authors, Open AI team Authors",
     author_email="thomas@huggingface.co",
     description="PyTorch version of Google AI BERT model with script to load Google pre-trained models",