Outlook appModule: properly fixes #1285 allowing focus to be tracked in the message...

Outlook appModule: properly fixes #1285 allowing  focus to be tracked in the message list while running NVDA with UIAccess/administrator privilages.  It seems that we are not able to fetch the outlook version in these situations as trying to tet the object model entirely fails.  Instead allow this code to be used simply if the childID is 0 as this is only the case in Outlook 2010.