Altered:
IDEASAppController::configureSingleSpectrumView() to check to see if the
generated list of +1 rank data sources is empty before grabbing the
first one from the list.

Cleanup:
Removed old qDebugs in AMGenericScanEditor
Merge pull request #871 from acquaman/Issue833

Pull request for Issue833:  IDEAS XAS scans crash when detector 'none'