Bumped version for new release.

4-bit inference with hotfix.

Release 0.39.1.

Added better error message for debugging on CUDA not detected failures.

Added version 0.37.0.

Fixed CUDA SETUP for tag

Updated docs (#32) and changelog.

Fixed url in setup.py (#38), updated changelog.

Added patch notes.

Fixed bug in Linear8bitLt, when the bias is None.