Think 1980s. Think “Miami Vice” pastels. Think disco and bad 1970s hair. Think age 13. For those who delight in the simchas of yesteryear, there’s Barmitzvahdisco.com, a Web site dedicated to the bar mitzvah — in all its glitz and glory. Sometimes, some people just want to luxuriate in the sentimental kitschiness of “when we wereRead More