- Add a comparison method to DTPath2D. - Ensure that offsets are integers, for slicing. Weird   that this never showed up as a bug before. - Add safe cases for iterating/saving an empty path.
- Add a comparison method to DTPath2D.
- Ensure that offsets are integers, for slicing. Weird
  that this never showed up as a bug before.
- Add safe cases for iterating/saving an empty path.

amaxwell/datatank_py