Uncle Joe’s Bar-B-Q By JOHN PIERSON Uncle Joe’s Bar-B-Q serves the down-homiest food on St. John in the U.S. Virgin Islands. Serves it with love. Most other eating spots on St. John, a resort island, tend toward a thousand tiny Christmas lights and cuisine faux French. Joe Harrigan sticks to the basics: a few rough wooden tables, paper plates, plastic knives and forks. Locals take out; tourists belly up between grill and sidewalk, enjoying kitchen and street life, at a busy  more...