DoubleSlider isn't picking up the minimum increment

[rickmcgeer]

On remote dashboard it increments by 1, not 4

[rickmcgeer]

Now fixed. Needed to expose the increment property on DoubleSliderWithValuesModel.

$world.execCommand("open browser", {moduleName: "studio/inputs/slider.cp.js", packageName: "galyleo-dashboard", });

Assigned to @merryman for review