Fixes for Cookiecutter v2.1.0 and newer

Bump version to 0.6.1

Use pathlib.Path in bake method

Bump version to 0.5.1

Update version to 0.5.0

New command line flag to keep generated projects

Add capability to specify the template directory.

Upgrade to Cookiecutter v1.4.0 for isolated test environments

Release the very first version to PyPI