LONDON (Reuters) - Bollywood star Shilpa Shetty, a contestant on hit reality television show Celebrity Big Brother, finds herself at the centre of a storm over racism and bullying that has many Britons asking -- are we all bigots? The 31-year-old, a major star in India but little known in Britain until now, will be one of the last people in the country to know that her treatment in the Big Brother house, which is cut off from the outside world, is front page news. A record 13,000 complaints have been made to media watchdog Ofcom, politicians are weighing into...