The Southbury Zoning Commission has approved amendments to regulations clearning the way for breweries, wineries, distilleries and similar businesses.   A special exception permit will allow farm breweries, farm wineries and farm distilleries are permitted in all zones. Definitions were also added for “brewery, “distillery,” “microbrewery,” “microdistillery,” “microwinery” and “restaurant-brewery.”  Those are only allowed in certain zones.