release v0.4.9

Author: williamFalcon

setup.py

@@ -14,7 +14,7 @@
 # engineer specific practices
 setup(
  name='pytorch-lightning',
- version='0.4.8',
+ version='0.4.9',
  description='The Keras for ML researchers using PyTorch',
  author='William Falcon',
  author_email='waf2107@columbia.edu',