By Kirsty Needham SYDNEY (Reuters) -Solomon Islands Prime Minister Manasseh Sogavare did not attend a weekend dawn service for a key World War Two battle organised by the United States, with local media reporting it as a “snub”. The Solomon Star News said Sogavare was due to give a speech at a memorial service that was attended by U.S. Deputy Secretary of State Wendy Sherman, and ministers and officials from Japan, Australia and New Zealand on Sunday, but he did not appear. Sherman told a news conference Sogavare was on the printed programme for the ceremony, which marked the 80th anniversary …