By Paul Casciato LONDON (Reuters) – The Rolling Stones will take a step back in time this weekend by replicating a woodland in London's Hyde Park present for a 1969 show there that became a tribute to band founder Brian Jones. Jones had already left the Stones the last time frontman Mick Jagger, guitarist Keith Richards and drummer Charlie Watts played the royal park 44 years ago for a gig meant to introduce his replacement Mick Taylor. …