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updating windows in FM & Smalltalk

There is currently a problem with the window updating scheme used in
FM (smalltalk).  The only window that gets updated is the one with the
cursor in it. This is because the active controller knows only about its
window and can only do the update stuff on it.
  Recommend we keep a list of windows (WarpDrives? CapViewers?) which
can be used to update all appropriate windows.  Note that because of how
things are wired now, even 'views' which are part of the same smalltalk
'window' do not get updated.  It may be appropriate to have all the 
FMMVCViews in a smalltalk 'top' view be on the list of active views for
getting updates (rather than all FM views).  This would solve the problem of
updating hidden views.