Petition for writ of cer-tiorari to the United States Court of Appeals for the Eighth Circuit granted. The judgment is vacated, and the case is remanded to the United States Court of Appeals for the Eighth Circuit for further consideration in light of Astrue v. Ratliff, 560 U.S. 586, 130 S. Ct. 2521, 177 L. Ed. 2d 91 (2010).