- Removed `years`, it was too specific to the [bevry/projectz](https://github.com/bevry/projectz) use case
- Added new `compare` method
- Added new `json` dynamic property
- Setting an `email` will now keep an `emails` array up to date, for multiple email support
- Renamed `setValue` to just `set`
- `ensureFields` no longer caches, and now supports array fields