Fix: RPL set editor 'saved with model' state icon visibility [5781] [2]
Bug Number: 5781 revisited
Release notes (y/n): Yes
For Release Nums: 7.2

The prior fix to Gnats 5781 of 3.5 weeks ago (11-14-2017) was not correct.
This, unfortunately, was applied to 7.1.6.  Adding the call to 
updateSaveWithModelStatus() from the RplSetDlg constructor had been needed.
But requiring RuleSet to be "Loaded" for the  'saved with model' state icon 
to be visible was not correct. That condition ("Loaded") was correctly being 
applied to the 'appIsRBS' and 'appIsOpt' cases in RplSet::
thisSetWillBeSavedWithModel().  I did do a little cleanup in that latter 
method for more tractable debug diagnostics.

Prior to the earlier fix, the correctness of the result relied on the 
initial visibility of that icon being correct for RPL applications for 
which no initialization was "needed".  I prefer to code more "defensively" 
than that.  "Correct state" should be explicitly coded.

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