Elena Ezhova 0e3c918e88 Update "Signal handling" section of usage docs
* Add SIGINT to the list of handled signals.
* Add a note that SIGHUP is not supported on Windows.

Change-Id: I90a1b422e00a5d2978e74f3798e17d58a58572bc
Related-Bug: #1481607
2015-08-13 16:06:14 +03:00
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