ReutersNicki Minaj said she spent between five and six hours in jail in AmsterdamNicki Minaj fans were left angry after the American rapper’s gig at Manchester’s Co-op Live arena was called off at the last minute, following her arrest at Amsterdam’s Schiphol Airport.Minaj was arrested on suspicion of exporting soft drugs before being fined and allowed to continue her journey, Dutch police said.However, she didn’t make it to Manchester in time for her concert on Saturday, which was postponed as about 20,000 fans were in the arena waiting for her to take the stage.They included Imogen Pope,…