BUZZ-New Zealand's Diligent touches seven month high on BoardLink acquisition
** Diligent rises as much as 4.4 pct to seven month high
** Software application developer Diligent acquires BoardLink from Thomson Reuters Corp
** Stock has risen 8.4 pct this year versus 4.8 pct rise in S&P NZX 50 Capital Index, as of Monday's close
** Stock is the top percentage gainer on NZX 50 Capital Index (Reuters Messaging; email@example.com)
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