It was jam-packed inside Prost! Boise Tuesday night for the grand opening of the German-themed pub. Not only was the Eighth Street-facing patio overflowing at 7 p.m., but the smallish inside space was also elbow-to-elbow, with patrons sloshing beers merrily as they squeezed past one another. Customers sipped on 1L and 0.5L steins of German beer, including classics like Bitburger Pils and Hofbräu Original, along with less familiar brews like Ayinger Celebrator and Grevensteine