flickr.com/photos/houseofcardsHartmann's housing gamble lost millions for investors.​Doug Hartmann got the maximum sentence possible yesterday when a federal judge ordered him to serve two years in prison and pay $34 million in restitution to some 114 victims. Earlier this decade, Hartmann was one of the most free-spending developers in town -- buying up hundreds of properties (mostly in south St. Louis) that he told investors he planned to rehab and sell for substantial profits. But for many