fix connections remaining in CLOSE_WAIT state forever#7

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munzli wants to merge 3 commits intodutchcoders:masterfrom

monostream:master

Commits on Dec 14, 2017

receive from channel on simplecommands and remove unknown commands
munzli
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Commits on Feb 22, 2018

re-add now tested commands
munzli
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correct return type
munzli
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