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MR with updates

See merge request !2

Thanks to Jason Weathered

Updated Copyright in: "cputool.c" and "cputool.h"

Copyright updated to 2015 in "cputool.c" and "cputool.h".

See merge request !1

* Make sure we continue execution when we exit
* Cleared up some debug info

Added an examples section and warned people to use -l with TCP network
connection.

I cleaned up the source a bit, added --version and made the options
parsing (-p / -P and command specified) a bit more robust. I also wrote
a man page.

* Fixed (double) cast, it should be (long double)
* Reduce precision of statsTimeDelayed