Bug 5923: Alignment of plot grid with right axis is not working.
Bug Number: 5923
Release notes (y/n): Yes
For Release Nums: 7.1

The plot grid configuration includes 'Y Grid' choices of 'Left Y Axis' and 
'Right Y Axis', but changing to the latter had no effect.  See this screenshot 
... http://cadswes2.colorado.edu/~philw/2017/bugs/5923/bug5923.png (also in 
bug directory with model).

The solution was quite simple.  We needed to add a calls to QwtPlotGrid::
setYDiv() in SlotPlot::setGridYAxis (int axis).  A similar change was added 
to SlotPlot::setGridXAxis (int axis).

This solution was cited on this QtCentre / Qwt sub-forum post from Dec 2013 
... http://www.qtcentre.org/threads/57963-Problem-with-QwtPlotGrid ... see 
images ... http://www.thirdtablet.com/cadswes/2017/5923/qtcentre-photos.html
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