H5torch

I encountered an error where vlen type saving was automatically converted to N-D saving if all objects were the same length. This behavior is now fixed.

**Full Changelog**: https://github.com/gdewael/h5torch/compare/0.2.0...0.2.1

I think introducing documentation to this thing deserves the minor version bumped.

**Full Changelog**: https://github.com/gdewael/h5torch/compare/0.1.9...0.2.0

I added documentation and messed around with readthedocs.

**Full Changelog**: https://github.com/gdewael/h5torch/compare/0.1.8...0.1.9

Bugfix with slicing csr

Added CSR support for slice datasets

**Full Changelog**: https://github.com/gdewael/h5torch/compare/0.1.6...0.1.7