iMoney fully evolved: Historical exchange rate chart; New keypad layout, ibration and sound effects

· Historical exchange rate chart, providing you with 5-day, 1-month, 3-month, 1-year, 3-year, 5-year historical exchange rates

· New keypad layout for easier calculation

· The keypad adds sound and vibration feedback. It is off by default. You can manually turn it on in the app settings

· Other detail improvements and optimization