By Adam Bloodworth Hello, Dolly! at the London Palladium review: ★★★★ Plenty of musicals made in the middle of last century are given glittering revivals, but rarely do they look and feel as contemporary as Dominic Cooke’s adaptation of Hello Dolly!, this year’s most hyped musical. Cooke plunges us into an 1890s New York so richly realised through pops of colour and set pieces that it can feel cartoonish in its eccentricities. Great trolleybuses veer onto the stage, warm colour washes pulsate like club lighting, and the fashion is out of this world. Musicals at the Palladium typically pull out…