Tree Palace by Craig Sherborne Text Publishing, 2014, 327 pages, $29.99 “Trants” are itinerant people, and Craig Sherborne’s Tree Palace describes the lives of a family of them from their outset in nomadism and its dislocations to a resolution where some settle­ment of spirit and material circumstance are in prospect. Here is a novel of resourceful, well-paced comedy and I found myself engaged by it as I had been by a previous Craig Sherborne story of people at the exposed margin of a society, the vibrant memoir of his parents, Hoi Polloi. This trant family owns as many surnames as…