Modified counters for clients to start from 0 instead of 1 to clean up code.  Added tracking of successful packets and added counts of dropped packets.  Successful packet counter is used now to calculate latencies and averages.  Program still reports -1 for average latencies if no succesful attempts are made.
Modified counters for clients to start from 0 instead of 1 to clean up code.  Added tracking of successful packets and added counts of dropped packets.  Successful packet counter is used now to calculate latencies and averages.  Program still reports -1 for average latencies if no succesful attempts are made.

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