By Muvija M LONDON (Reuters) -Britain on Tuesday issued a legal order preventing an Abu Dhabi-backed group from making more changes to its proposed takeover of the Telegraph newspaper, days after eleventh hour adjustments by RedBird IMI group reset an ongoing regulatory process. The Telegraph and its sister title, the Spectator magazine, should not be integrated with any other enterprise and no organisational or management changes are to be made by RedBird IMI without government consent while a probe is carried out, the order said. The publications, some of Britain’s oldest, are widely regarde…