With all the travel writers urging "rent early," you might think that "last-minute vacation rentals" is an oxymoron. Fortunately, it isn’t. A newly launched British website, snaptrip.com, focuses on l. JetBlue Vacations offers vacation packages and deals, including Caribbean and All Inclusive vacations. PackLate.com, a new startup that aims to make it easier for people to book affordable vacation rentals online at the last minute, recently raised $685,000 in seed…