Airbnb is planning to launch a luxury rental website for mansions and penthouses. The new service doesn’t have a name yet, but the company’s managers refer to it as “Airbnb Lux,” Bloomberg reported. Earlier this year Airbnb bought the Canadian high-end rental site Luxury Retreats for a rumored $200 million. The site’s 4,000 listings have not yet been incorporated into Airbnb. The San Francisco-based tech giant, which investors valued at $30 billion, is planning to […]