Changed a bunch of JLabelData methods to be private.
Added setGTSuggestionMode() method to JLabelData, made all Suggest<mode>GT methods private.
Made a bunch more methods in JLabelData private, including ApplyPostprocesing().  ApplyPostprocessing() is now called within setPostprocessingParams().
Fixed some bugs that arose from making things in JLabelData private.  Enabling a score feature now works.