Johnson enters the EU lions' den

By Robin Emmott and Gabriela Baczynska BRUSSELS (Reuters) - Boris Johnson, who made his name as a Brussels-bashing journalist in the 1990s, was determined to avoid making headlines when he returned to his old stamping ground on Monday. The mop-haired politician, who led last month's referendum campaign to take Britain out of the European Union, was on his best behaviour at his first EU foreign ministers' meeting. "We have to give effect to the will of the people and leave the European Union, but