Setting a default value of interval prop in DynamicRangeSlider

[siddharthlatest]

By default, the interval prop (for the number of histogram bars) should be set to Math.ceil((range.end - range.start) / 10). We already do this in RangeSlider component https://github.com/appbaseio/reactivebase/blob/dev/app/sensors/RangeSlider.js#L243.

[farhan687]

Range value is not predefined over here.
Here we execute histogram aggregation query to find the range.

In RangeSlider we already have the range values in prop so, this implementation is possible there only.

[farhan687]

Fixed here: 49c69ac

• Now we are executing 2 aggregation

1. Get range values
2. Execute histogram aggregation query.