Alternative Comedy Festival Somerville Theatre, 55 Davis Square May 9 and 10, 8pm [ Website | Tickets] Yes, Virginia, comedy can be funny and unpredictable again. Don't be lulled by jokesters treading over the typical, fallow topics trying to be the next Jerry Seinfeld or Ray Romano. In what will hopefully be the first year of a new local institution, the Somerville Theatre hosts the Alternative Comedy Festival tonight and tomorrow. Some may roll......