Mark Davis is ready to get back into the beer-making business. After more than 13 years of building a thriving restaurant based on selling the craft beers of others through his Pittsburgh Bottle Shop Cafe in Bridgeville, Davis has invested $300,000 in a seven-barrel brewing system as well as in a facilities expansion to begin serving beers of his own making. "This will be my last hurrah," said Davis, who also describes it as getting back to his roots. He said it's the first time he's made...