controller changes to implement CA-223: make sens/spec fields editable.
controller changes to implement CA-223: make sens/spec fields editable.

This resolves CA-223. All sens/spec fields for all study data objects (both those
attached at the biomarker-organ level and those at the biomarker-study level).

EDRN/biomarker-database,EDRN/biomarker-database,EDRN/biomarker-database,EDRN/biomarker-database