Kevin D. Williamson is a “roving correspondent” for the National Review. Kev doesn’t tell us where he’s roving when he delivers his latest dispatch, a frenzied take-down of Girls gal Lena Dunham, but he’s definitely pissed. In a 1,050-word screed, Kev denounces Lena and all her works, using such words as “psephological” (Greek for “pebble…