They're mostly happy about getting a menu entry
                                
                                
                                    (Newser) -
                                    Surprise, surprise. In an age of  KFC Double Downs  and footlong cheeseburgers, Denny's has put a "bona fide vegan burger" on its menu, writes Jason Best at  Slashfood . Granted, it also has a Bacon Slamburger, he notes, but his survey of vegan blogs finds that people seem genuinely excited...