2014.07.12 MSS Code Factory 1.11.12246 GUI navigation prototyped for sub-objects

Sub-objects are usually lists of objects, so I've modified the GUI
prototype code to display a JMenuBar for the ListJPanels instead of
an actual list box.  This lets you add the referenced objects,
opening up their View/Edit windows, from which you can navigate
further down the tree.

You can fully explore the hierarchy of add/view/edit windows now,
though I haven't wired delete functionality anywhere yet.  I do think the
add/view/edit windows should be where the delete confirmation gets
wired, so you have to look at an object *before* you delete it rather
than being able to delete it directly from a list box row (i.e. the
functionality would not be part of the list panel, but the view/edit
internal frames.)

Maybe I'll work on that next.  I *think* that would leave me with
the means to navigate through all the prototyped widgets save for
list boxes, which I haven't even *started* to flesh out yet.  They
just display the same attributes as a view/edit panel, so they're
not all that interesting to me at this time.