private void historyMarketDataBtn_Click(object sender, RoutedEventArgs e)
        {
            YahooMarketDataLoader loader = new YahooMarketDataLoader();

            loader.loadTickerList();
            loader.loadHistoryData(new DateTime(2011,1,1),new DateTime(2014,4,8));
            loader.dbInsertHistory();

        }
        private void marketDataBtn_Click(object sender, RoutedEventArgs e)
        {
            YahooMarketDataLoader loader = new YahooMarketDataLoader();

            loader.loadTickerList();
            loader.loadData();
            loader.dbInsert();

        }