Added additional options for better positioning and formatting bar numbers

The below options place the formatted bar number little above the bar ...

```javascript
numbers: {
                     yAlign: function (x) {
                        return x;
                     },
                     textBaseline: "bottom",
                     offsetY: 5,
                     numberFormatter: function(value) {
                            var precision = 2;
                            var formattedText;
                            if (value >= 10000000)
                               formattedText = (value / 10000000).toFixed(precision) + ' C ';
                            else if (value >= 100000)
                               formattedText = (value / 100000).toFixed(precision) + ' L ';
                            else if (value >= 1000)
                               formattedText = (value / 1000).toFixed(precision) + ' K ';
                            else
                               formattedText = value.toFixed(precision);
                            return formattedText;
                     }
                }
```