Fixed utf8 issue with avatar cache and server logging.

src/gui/qt/qttools/nonqttoolswrapper.cpp

@@ -45,6 +45,7 @@ NonQtToolsWrapper::~NonQtToolsWrapper()
 }
 
 std::string NonQtToolsWrapper::stringToUtf8(const std::string &myString) { return myQtHelper->stringToUtf8(myString); }
+std::string NonQtToolsWrapper::stringFromUtf8(const std::string &myString) { return myQtHelper->stringFromUtf8(myString); }
 std::string NonQtToolsWrapper::getDefaultLanguage() { return myQtHelper->getDefaultLanguage(); }
 std::string NonQtToolsWrapper::getDataPathStdString(const char * argv0) { return myQtHelper->getDataPathStdString(argv0); }