beremiz

fix problem if _should_write is called by expired timer after

2017-09-08, Andrey Skvortsov
e27d253bd0ba
fix problem if _should_write is called by expired timer after
termination of wx application.
<?xml version='1.0' encoding='utf-8'?>
<BeremizRoot URI_location="LOCAL://">
<TargetType/>
</BeremizRoot>