Martha Stewart Living Omnimedia Has Loss  NEW YORK (Reuters) - Martha Stewart Living Omnimedia  Inc.&lt;A HREF="http://www.investor.reuters.com/FullQuote.aspx?ticker=MSO.N target=/stocks/quickinfo/fullquote"&gt;MSO.N&lt;/A&gt; reported a much wider quarterly loss on Thursday as  its founder's criminal conviction on charges of lying to  investigators continued to weigh on the business.