DAN HAAR | Courant Columnist The fallout from the shootings in Newtown led to the year’s most important business story: the gun control law that threw the state's historic firearms industry into turmoil. But for the most part, the biggest business and economic stories of the year were not about the happenings in Connecticut's traditional industries such as aerospace, biotech and insurance. Rather, they came from the world of regulated consumer services: casino expansion, a hospital strike, electric rates, a telecom merger and online sales taxes. Overall job creation is always key, of course, as is urban development. And one of the biggest business stories, the launch of the state's health exchange, isn’t on this list because it was among the Courant's Top 10 stories of the year for all news.