LOS ANGELES (Reuters) – Country-pop star Taylor Swift held onto the top spot on the Billboard 200 album chart on Wednesday as her latest album "Red" kept rapper Meek Mill from the top spot. "Red," Swift's fourth studio album safely took the No. 1 position after selling 344,000 copies according to figures from Nielsen SoundScan. Last week, "Red" scored the highest first week U.S. sales in a decade after selling 1.2 million copies. …