Made split() a static member function.

update.h

@@ -46,6 +46,7 @@ public:
     enum class FileTypeJson {CONFIG=1, DEVICE=2, CASH=3, SERIAL=4, TIME=5, PRINTER=6};
 
     static hwinf *loadDCPlugin(QDir const &plugInDir, QString const &fn);
+    static QStringList split(QString line, QChar sep = ',');
 
 
     explicit Update(hwinf *hw,