Version 0.1.4

Fixes and better error handling

Version 0.1.3

Fix variable name clash that could mask some snapshot that would never be deleted.

Version 0.1.2: Retention policy implementation update

Change the retention policy implementation so the resulting selected snapshots are more like what i would expect.

Version 0.1.1

Fixes pypi packaging.

Version 0.1.0

This version have not been used in production for a long time so use it as your own risks.