Enhance prepmigrate to be able to parse the factsheet's subject and alphabet range from the two summary factsheet views, and produce update CSVs that can be processed on the back-end.
Initial version of processing of Exhibition DCR into code
Add the first working logic to preprocess the DCR CSV and XML summary files.
Save the DCR data being used for this transformation, just in case.
Make the code smart enough to flatten the item/value hierarchy to a new XML file while also concatenating the different DCRs together and getting ancillary needed information.   Now we're getting somewhere.
Improve front-end processing of exhibition DCRs to get it more sensible.
Switch prepmigrate to make it future proof with Ruby 2.1.0 by switching to addressable