v0.17.1. Minor change of variable ids.

The static file variables was updated with new variables id and additional variables (such as spires albedo), for future use.

What's Changed

• Commit message Update variables.json with new ids by @sebastien-lenard in #53
• Release v0.17.1 [var ids change] by @sebastien-lenard in #54

Full Changelog: v0.17.0...v0.17.1