The Agenda’s a little late this week, and we’re awfully sorry to leave you hangin’. We’ve been expanding our regular visual arts coverage (hope you noticed), but in so doing got behind on our long-standing duties. Luckily, there’s a slew of events this weekend to point out, so hopefully you’ll forgive our tardiness and not throw any drinks in our faces when we see you at openings over the next few days. White wine may…