…e. This fixes a bug where file records that are deleted don't see their binary data (fs.chunks) being deleted too.
…mprove efficiency. Renaming `keys` config field in `\data\model\Relationship` to `key`, to better reflect default use case.
…ctionality, and reduce API ambiguity.
…t `app` prefix; corrected out-dated path conventions.
…ment::__set()` and `Exporter::cast()` to reduce call count.
…ource::sources()` for better nomenclature consistency.