Fixed utf8 issue with avatar cache and server logging.

src/gui/qt/qttools/nonqthelper/nonqthelper.cpp

@@ -37,6 +37,12 @@ NonQtHelper::stringToUtf8(const std::string &myString)
 	return ConvHelper::NativeToUtf8(myString);
 }
 
+std::string
+NonQtHelper::stringFromUtf8(const std::string &myString)
+{
+	return ConvHelper::Utf8ToNative(myString);
+}
+
 std::string
 NonQtHelper::getDefaultLanguage()
 {

src/gui/qt/qttools/nonqthelper/nonqthelper.h

@@ -35,6 +35,7 @@ public:
 	~NonQtHelper();
 
 	std::string stringToUtf8(const std::string &);
+	std::string stringFromUtf8(const std::string &);
 	std::string getDefaultLanguage();
 
 	std::string getDataPathStdString(const char *argv0);