By using Andrew Osborn and Sarah Younger LONDON (Reuters) – Britain gave Margaret Thatcher its grandest political funeral in half of a century on Wednesday as her flag-draped coffin used to be borne thru primary London on a horse-drawn gun carriage, though just a few boos have been a reminder of her divisive rule and legacy. In an event related to Winston Churchill’s funeral in 1965, the Queen joined top British and international politicians earlier and current to pay her remaining respects to the “Iron Lady” who – for higher or for ill – remodeled the us of a. …