CoeSwd9: Dialog changes; solved exit assertion failure; dialog positioning.
Bug Number: n/a
Release notes (y/n): no
For Release Nums: 7.1

See screenshots -- the three edit modes: Plots, Axes, Curves:

  http://cadswes2.colorado.edu/~philw/2017/CoeSwd9/2017-03-08/dlg1.png
  http://cadswes2.colorado.edu/~philw/2017/CoeSwd9/2017-03-08/dlg2.png
  http://cadswes2.colorado.edu/~philw/2017/CoeSwd9/2017-03-08/dlg3.png

(1) In the "Configure Multiple Plots and Curves" dialog, the "Apply to All" 
  and "Apply to Selected" buttons were moved from the outer dialog, into the 
  Plot Editor Control Panel.  These each are defined with their own Qt "UI" 
  (Qt Designer) file.  It took a bit of work to get the optimal panel width 
  working again.

(2) Added note along the bottom of the dialog:
  Note: Double-click in "Type" column to copy item settings to edit controls.

(3) Addressing an assertion error failure on clear workspace.  
  (Earlier closure of related dialogs).

(4) Initial position problem fix.  The first time the dialog was shown, it 
  had been in the upper-left corner of the screen -- with the window's title 
  bar ABOVE the top of the screen.

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