Use txzmq in backend
In substitution of the current polling/blocking loop.
(from redmine: created on 2014-11-12, closed on 2015-05-14, relates #6359 (closed), relates #5718 (closed))
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In substitution of the current polling/blocking loop.
(from redmine: created on 2014-11-12, closed on 2015-05-14, relates #6359 (closed), relates #5718 (closed))