Disney’s latest Blu-Ray offering is something that feels classically Disney, yet has the awareness and modernity of something like the studio’s frigid Princess pic. Zootopia trades ballgowns and musical numbers for a sweet-natured but surprisingly adult story. Sure it gets a candy coating, thanks to the conceit of a civilized mammalian populus, but while not intended as a straight-up comedy, this cuddly whodunnit is an all-out laugh fest. We loved it in the theaters, and this is just a blast at home; now we can go frame by frame to take in all the grandeur of the flora and fauna directors Byron Howard, Rich Moore, Jared Bush, and their team crafted. It’s a delicious…