SOLANA BEACH – An annual fun-filled fiesta quickly turned into a fiasco Sunday when entertainer Hank Williams III spewed profanities from the stage and encouraged slam dancing that sheriff's deputies tried to stop for fear of massive injuries. Yesterday, city officials were still recovering from the debacle, which happened at the end of the two-day Fiesta del Sol. snip The Solana Beach Chamber of Commerce produces the annual fiesta that features live music, arts and crafts, children's rides and international food. snip The singer, grandson of legendary country star Hank Williams, is known for his hard-driving songs and off-color language....