Updated IsAboutAPerson to exclude Sibling duos and Sibling musical duos

git-svn-id: svn://svn.code.sf.net/p/autowikibrowser/code/AWB@9996 5227b50d-9349-4574-b055-4b0a7525e11c
Extra tests for FixBrParagraphs

git-svn-id: svn://svn.code.sf.net/p/autowikibrowser/code/AWB@9997 5227b50d-9349-4574-b055-4b0a7525e11c