By Paul Sandle LONDON (Reuters) – Britain’s Greggs said strong demand for its Festive Bakes, Christmas lunch baguettes and salted caramel lattes delivered a better-than-expected 9.4% rise in fourth-quarter like-for-like sales, sending its shares to a five-month high. The food-to-go retailer’s strong Christmas resulted in full-year sales rising 19.6% to 1.81 billion pounds ($2.28 billion), comfortably beating market expectations of a 18.1% rise. Its shares jumped 10% to a high of 2,718 pence on Wednesday, topping Britain’s mid-cap index. Greggs outperformed lacklustre demand on Britain’s high s…