[AppDB] - clean up testResult::ShowTestResult() and testResult::ShowVersionsTestingTable()

[Tony Lambregts]

Chris Morgan wrote:
> Eliminate redundant parameters from these functions.  Have version class check 
> to see if the $iTestingId seems valid.
>
> Patch removes a query for each call to testResult::ShowTestResult() because we 
> don't actually have to re-query the database for information already stored 
> in the class.
>
>
>   
Looks fine.
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Tony Lambregts