by Paul Teetor Survive and advance. That’s the unofficial motto of the NCAA basketball tournament, and that’s exactly what UCLA did Saturday night: survive and advance to the Sweet 16. Barely. The second seeded Bruins were tied with 7th seeded Northwestern at 45-45 with 11 minutes left before finishing strong for a 68-63 victory that was even closer than the final score indicated. While the Bruins celebrated the hard-fought victory – and it was in doubt until the very last…