BERLIN (Reuters) - Germany's reform communist PDS party voted overwhelmingly in favour of joining forces with a new far-left party on Sunday and agreed to change their name to The Left Party for a general election in September. The party, which pollsters forecast could win 12 percent of the vote, has the backing of about 30 percent in the formerly communist east and has moved ahead of the Christian Democrats as the most popular party in the region. Delegates to an extraordinary PDS party congress in Berlin on Sunday supported the measure by 74.6 percent to easily clear a two-thirds...