Eventually fixed multithreading (views were in controller thread
before).
Further work on EditDialogView (JTextAreas in JScrollPanes etc) +
(private) ResizeLayoutManager.
Small improvements in ModeView (simplification of ResizeLayoutManager).
See HomeController for disabled ActionListener preventing from changing
view (to debug the EditDialogView).
Further work on a global edit mode : double click on buttons in HomeView
when editMode = true shows the EditDialogView (not ok button, not
finished).