The company is offering several new useful services for travelers. Airbnb Airbnb has been expanding  beyond rooms and homes for rent over the past decade. Now, it's adding more useful services for travelers in its app, including the ability to book — wait for it — hotels starting this summer. I have personally booked apartment-style hotels and serviced apartments from Airbnb in the past, but this expansion will add thousands more boutique and independent hotels in major cities around the world, including New York, Paris, London, Madrid, Rome and Singapore, to its listings. The company says it's featuring "hotels that feel like Airbnb," and it promises to price-match if you find them elsewhere for a lower price. Airbnb will also give you up to 15 percent in credit that you can use for a future booking if you reserve one of the featured hotels.…