changed to use built-in list methods

lib/gui_lite.py

@@ -258,7 +258,8 @@ class MiniWindow(QDialog):
         """Set and display the fiat currency country."""
         assert currency in self.quote_currencies
         self.quote_currencies.remove(currency)
-        self.quote_currencies = [currency] + self.quote_currencies
+        self.quote_currencies.insert(0, currency)
+        #self.quote_currencies = [currency] + self.quote_currencies
         self.refresh_balance()
 
     def change_quote_currency(self):