Yesterday I saw Wilko Johnson, an idol of mine for many years, at Poole Lighthouse.    It’s hard not to flash back 50 years to the Dr Feelgood footage we have all seen and enjoyed, but he is now so far away from the musician he was I feel saddened. He really didn’t look like he wanted to be there, and his vocals in particular - never his strong point, I agree - were painfully off. I admit the disappointment was magnified by really poor sound - the first song was 80 per cent delivered to a