Offer represents 40% premium; chain to stick to hotel management
                                
                                
                                    (Newser) -
                                    Blackstone moved to expand its hotel portfolio in a big way late today, making a deal to take Hilton private for $26 billion, including $7.5 billion in debt. The $47.50 per share offer, 40% more than yesterday's close, turned the head of the chain's CEO, who called it...