Bristol BeaconIf the comic's political fervour is dialled down, there is much to enjoy in a show delivered with flair and 10-ton sarcasm Inner peace and contentment are not always gifts to the comedian, and " who knows? " maybe that's why Bridget Christie's latest show is a teensy bit less thrilling than its predecessors. For Christie has found her happy place: serenely single, professionally triumphant (on the telly…