With the advent of October, Monza of Old Town Manassas, Va. is hosting a four-course pumpkin beer dinner, featuring beers from Dogfish Head, Southern Tier, Devil’s Backbone, Williamsburg Aleworks and Flying Dog. on Thurs., Oct. 17 at 6:30 p.m. for $65 inclusive. For reservations, go to www.eatmonza.com. The…