Multiple document subcategories

[jduss4]

Stephanie has come across a case document which needs multiple subcategories. Support for this will need to be built into the data_oscys scripts, solr index (multivalued = true) and into rails.

[jduss4]

Currently she encoded both into the TEI but the indexing script is only grabbing the first instance

[kacinash]

See Issue #181

[jduss4]

Issue #181 has the solution to this problem. Not only will exhibit types be supported alongside the document subcategories, but multiple subcategories could technically be possible if we changed the posting script xpath