Undo to_json on the data, this should already be a data structure.
 Create custom seriailzer for export_records to include the blob data.
 Modify the seed file to send in json as the data.
Reworked model to remove controller hack.  Also ensured the the blob.data is alwasy a JSON string.
Made changes to ensure the data in the blob is a json string
bumped version, uncommented tests...