On the eve of the Boston Book Festival, come celebrate the city’s literary past, present and future at the 2nd Annual Boston Lit Crawl, a night of literary merry-making in Boston’s Literary District. From 6:30 to 9:30 p.m., intrepid readers will choose from a variety of unique performances and literary events all in surprising venues from cafes and art galleries to barbershops and shoe stores. This moveable feast – all along Newbury Street – is FREE, and most of the events…