The drunk driver who fatally struck a 24-year-old woman on East 4th and Bowery--and kept driving--last year has pleaded guilty to vehicular manslaughter. Twenty-one-year-old Tenzing Bhutia, a senior at Baruch, will serve a two-year sentence starting in June for killing Julia Thomson (pictured) with his father's Mercedes last October. Thomson, a Scottish transplant who was living in the East Village, had been showing a friend the town when she was hit around 4 a.m. Witnesses......