Langkawi, Malaysia     I've been allergic to cats for as long as I can remember, which is probably why I've never liked them much. But last month, during a stolen weekend on the island of Langkawi I got completely blindsided by a new, unexpected relationship.   This is "my" cottage at Langkawi's Bon Ton Resort. Actually it belongs to the little guy in the lower right hand corner. He's one of about a hundred cats on the property who've been rescued by the Bon Ton's animal loving Australian owner, Narelle McMurtrie.   In addition to her resort and restaurant, Narelle runs and funds an animal rescue...