PARIS (Reuters) - France's new foreign minister pledged in comments published on Monday to press on with recent efforts to improve relations with the United States after the chill caused by the Iraq war. In a wide-ranging interview with Le Figaro newspaper, Philippe Douste-Blazy signalled no major change in foreign policy following his appointment on June 3, despite French voters' rejection of the European Union constitution on May 29. Relations with Washington became strained when Dominique de Villepin, who is now France's prime minister, led opposition to the U.S.-led invasion of Iraq in 2003. But ties began improving under Douste-Blazy's...