NEW YORK - A federal appeals court Friday upheld the conviction of celebrity homemaker Martha Stewart for lying to investigators about selling stock that plunged in price soon after her trade. Stewart completed her sentence in the case last summer but pursued the appeal anyway. The 2nd U.S. Circuit Court of Appeals in Manhattan issued a written ruling upholding the 2004 convictions of Stewart and former stockbroker Peter Bacanovic for lying about why Stewart sold nearly 4,000 shares of ImClone Systems Inc. stock in 2001. The sale came just before the stock took a dive on a negative government report...