There's something to be said for never forgetting where you came from. Since founding Against Me! a dozen years ago, frontman Tom Gabel has gone from recording acoustic rants on crackling cassette players as a 16-year-old cynical anarcho-punk to crafting the slick, radio-ready sounds of SPIN's 2007 album of the year. But last night at New York's Knitting Factory, it was all about those analog roots, as Gabel churned out a litany of old and obscure songs.