Labour’s Helen Clark has managed to win office again, but will face a newly invigorated opposition National Party, writes Bernard Moran.Billed as the most exciting national election for decades, New Zealand voters watched Labour’s leader Helen Clark and National’s Don Brash steer through a series of mishaps and missteps until Labour sneaked over the line.With days to go, National had a 10-point lead; but a last minute rally, particularly by Pacific Island voters, returned Labour for a third term…