Edinburgh fringe comedy roundup
From Humphrey Ker and the Pajama Men to Vikki Stone and Tim Key, Stephanie Merritt reviews the best of this year's Edinburgh comedyJust as the first solo album by members of a successful band always excites curiosity, so at the Edinburgh fringe the debut solo show by members of a well-loved sketch group is an intriguing prospect. Humphrey Ker, one of the Penny Dreadfuls, has created a show that lies somewhere between…