Changed New... dialog so that you can't change score features there.  You can do that on-the-fly, so it's not needed.
Restructured things so that JLabelData creation happens before
initialization of JLabel guidata, both on new file creation and
opening of existing files.  This enabled us to have a
setEverythingFile() method in JLabelData, rather than having all of
that logic in JLabel.  This is a good thing.