Britain's most enduring soap is going on tour. Diehard fan Lucy Mangan catches Vera, Ena and co in rehearsalI am leaning on a fragment of history: the bar of the Rovers Return, albeit a reproduction, on top of which sits a moth-eaten stuffed ginger cat. In front of me, a mighty tram crash is unfolding. "Slow-motion suffocation, please!" cries director Fiona Buffini, and six bodies fall gradually to the ground. "…
