Brace yourselves travelers, Newark Liberty Airport is still ranked dead last in JD Powers customer satisfaction survey, which are results revealed in a mid-process webinar ahead of the September release date. But there may be hope for the airport, based on what happened at its sister airport in Queens. JD Power’s interim satisfaction report showed a surprising turnaround at LaGuardia Airport, which busted out of the cellar and now ranks 11th in the large airports category. It’s score is 646, where 624 is the average ranking. Newark Airport received a 542 score out of 20 mega airports where 592…