Digg holds a special place in the hearts of many web and media geeks, since it was one of the first big "Web 2.0" success stories, at least terms of its influence. But the site lost its way and was eventually broken up and sold in pieces, with New York-based Betaworks picking up the name and the URL -- and now the incubator has relaunched the Digg site with all new code under the hood and…