Added stats and output options
Added stats and output options

* Ability to drop the messages (ie; for load testing) when no output
  is set (the default), or write to stdout with "-o -"
* Added some stats tracking - sending a "stats" command to the tcp
  port prints the stats, "reset" clears them.
* Switched most stdout output to use "log" so timestamps are printed.

hynd/tsdutils