When Gecko’s opened late last year, it was a revelation. It was like being lost in the desert and God pouring manna down from heaven. It was one of the first (another being LaVie) restaurant on the island to offer a menu of genuine Western food in a great, home-style atmosphere. For years, other establishments on Jeju had offered what they claimed was Western or Italian food, but never seemed to get it right. When friends told me about a new place on the island with actual American and …