Special case for DiseaseSpread transaction page.
Split Output Settings into a separate form
Size adjust Text Areas (they were too square)
use_disease_transition was removed.  Model clean up: some mistakes found in ControlProtocol
Renaming fields for ControlProtocol to make the labels easier to read.
Renamed many fields throughout the model to make them more readable.  Forms and DB were regenerated.
Hid SpreadModel.disease field