By Michael Holden and Kate Holton LONDON (Reuters) -Military bands, dancers, performers and celebrities paraded through the streets of London on Sunday to mark the final day of the Platinum Jubilee celebrating Queen Elizabeth’s 70 years on the British throne. Under leaden skies, open-topped buses, vintage cars, Olympic cyclists and troops from Britain and the Commonwealth travelled along the route the 96-year-old queen took on her coronation day in 1953. Reflecting the different decades of the queen’s reign, dancers dressed in 1950s outfits danced down the Mall – the grand boulevard leading up…