Bug 6072: Slot Viewer and Slot Dialogs data table row heights are not adjusted when Font is changed
Bug Number: 6072
Release notes (y/n): Yes
For Release Nums: 7.3, maybe 7.2.1

With the Slot Viewer and/or individual Slot Dialogs shown, if the user 
changed the RiverWare Font, the data table row heights had remained the 
same.  If the font was made larger, display characters were clipped on 
the bottom.

There were two different problems:

(1) The Workspace::updateSlotDialogs (bool appFontChanged /*=false*/) was 
making the appropriate call for the individual Slot Dialogs, but not for 
the new Slot Viewer (new in RW 7.2).

(2) The SlotDataTableModel::notifyAppFontChanged() was incomplete.  This 
problem may have been introduced with the RiverWare 7.0 upgrade from 
Qt 4.8.5 to Qt 5.5.1.  That method now needs to explicitly set the height 
of each row in the associated QTableView.  This requirement is unexpected, 
as QTableView has a pretty elaborate model/view architecture, and cell size 
is defined with the application-provided QVariant SlotDataTableModel::data() 
method's Qt::SizeHintRole.

ALSO: Minor change to the Gnats 6071 fix from yesterday:  Allow manual 
(user) narrowing of the Slot Dialog after dialog is automatically made 
wider to fully accommodate the RPL Expression Series Slot's Evaluation 
Range description. 

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