Southwest Airlines has announced a complete revamping of its Rapid Rewards loyalty program, effective March 1, 2011. What has long been considered the most lucrative of all frequent traveler programs is slated to switch from a points earned per flight to a points earned per fare, and fare category purchased. Point redemptions will be handled in an identical fashion. The new program will have no blackout dates or seat restrictions. For travelers who are currently members of the Rapid Rewards program, existing points will be converted....