* Add backward() to Tensor and Variable
* Add at:: in front of Tensor
* Trying to not move optional to appease windows?
* Move implementation into cpp file
* Undo some formatting changes
* Implemented fused builder based construction mechanism
* "weights" -> "weight"
* Use int64_t instead of size_t everywhere in RNN
* Extracted Conv::ExpandingSize into its own thing
* Rename TORCH_PARAMETER to TORCH_ATTR
* Added documentation
* Fix weight names in batchnorm module
* Rename autograd namespace to torch and change torch.h into python.h
* Pave the way for torch::nn::Module
* Reorganize module code structure
* Undo ONNX update
* Remove sleef submodule
* Rename autograd namespace to torch and change torch.h into python.h
* Include torch.h instead of python.h in test/cpp/api
* Change some mentions of torch.h to python.h in C++ extensions
* Set paths directly, without find_path
