Today is Katrina Kaif's birthday. If you are expecting her to have good time with her boyfriend Salman Khan, you are in for a disappointment. She has left him in the cold in Mumbai.Buzz up!It seems Katrina is determined to spend her 25th birthday with her family in London and doesn't want a repeat of last year's ugly episode. Sources said that Salman proposed a private party for Katrina on her birthday, which would have...