2014.09.04 MSS Code Factory 1.11.12331 Cleaned up a few GUI actions

There were some inconsistencies and holes in the GUI functionality
to date.  Some of that has been corrected and fleshed out.  I think
it should be close to functional at this point, give or take a lot
of missing postChanges() code for the AttrJPanel.
2014.09.04 MSS Code Factory 1.11.12333 setPanelMode() implementations fleshed out

The setPanelMode() implementations now check for the subset of
valid values that are appropriate for the window or panel in
question.

I believe all the state changes are properly tracked by the edit flow
events now, but I'll have to do some actual testing to be sure. :)

This is all very much untested GUI code at this point.  It builds.
It might work.  It might not.  'tis the Schroedinger's Cat of Code... :P