ambiata/ivory — pull request #159 by raronson (2014-07-31 07:15:07+00:00)
Title: Add OldIdentifier

This is the first step in consolidating the old id format which `FeatureStoreId` and `FactsetId` use. It will help with the migration to `Identifier`. The next steps are to migrate the string representation of `FeatureStore` id and `FactsetId` to use this.