Rob Levitt has been one of Chicago’s leading butchers for several years, and his store, The Butcher & Larder, has gained an even higher profile since moving from its tiny original shop to the Local Foods retail store that opened last June. Customer service and information is part of the store’s stock in trade — so it was not surprising when the news broke Thursday that fans voted The Butcher & Larder as Best Butcher Shop in Chicago in an online poll.