Eng 6407

Added an AtomicLong to track totalVotes the same way the accepted and bad votes are counted.  The earlier total vote count was taken from stats, which is reset immediately after the warmup period, but counts several thousand warmup votes that are still being received.

Also added "during the benchmark" to distinguish the vote counts from this run of the benchmark (post warmup) from the contestant vote counts (which include warmup votes and any votes from previous runs).

I've run functional tests, this works correctly now.