v0.1.5 for UE4.15

Changes:
-Auto-reinstalls pip if folder is different from currently installed

Defaults to tensorflow-gpu, see documentation for gpu - dependencies: https://www.tensorflow.org/install/install_windows

Requires:
CUDA 8.0 - https://developer.nvidia.com/cuda-downloads

and

cuDNN v5 - https://developer.nvidia.com/cudnn

remember to add cuDNN v5 dll folder to your sys path.