A former stock trader who bankrupted his former employer in a bet on Apple stock that went bad, and who pleaded guilty to wire fraud and conspiracy in a plea deal, has been sentenced to prison for his crimes – for one-tenth of the maximum time he faced. David Miller, 41, will serve 30 months in prison for his scheme to buy more than 1,000 times the amount of AAPL a customer ordered, on the same day that Apple was to announce its third-quarter revenues in 2012. He planned to sell the excess stock when the price rose, and pocket the difference for himself….