NEW YORK — The good news for Thanksgiving travelers? The price of gas is at five-year lows. The bad news? A lot more people will be on the road. During the long holiday weekend, 46.3 million Americans are expected to go 50 miles or more from home, the highest number since 2007, according to travel agency and car lobbying group AAA. That would be a 4.2 percent increase over last year. While promising for the travel industry, the figure is still 8.5 percent short of the 50.6 million high point reached in 2007 …