Trying to see if there's life after xpat

Background: https://tools.lib.umich.edu/confluence/display/OBC/Experiment%3A+Indexing+Metadata

The data directory contains sample data for six collections.

Each collection directory has max 1000 sample records.

Each file represents a record, is encoded in JSON, where each key is a field, and each value is an array of strings (with one exception).

Common metadata is represented by the Dublin Core, and can be recognized by the leading dc: namespace, e.g. dc:title.

The dc:memberOf value is an array of hashes. The hash has a title and href --- where the href starts with urn:x-umich:group: the entry represents membership in a DLXS group. urn:x-umich:collection: represents a DLXS collection. At this point, use whichever value you want to tinker with, or punt!

The collection-specific metadata are the keys prefixed with the collid, e.g. bhl:bhl_ti.