Although the two barrier islands of Longboat Key and Anna Maria Island measure less than 20 miles end to end, there’s plenty going on.On May 6, three mayors representing towns and cities on those two islands met at Longboat Key Town Hall to catch up on those goings on. The potential introduction of paid parking, Anna Maria Pier repairs, Manatee County property valuations, ferry service and traffic backups were all discussed. For Longboat Key’s n…