Fixed Scaling for Axis Changes of the BKSimpleScatterGraph
A developer stopped by today - OK, well he didn't stop by, I had to walk to his place, but still... he pointed out that if you make a selection on the z-axis of the BKSimpleScatterGraph and then change the x (or y) axis, the graph doesn't properly re-scale it's limits.
The code I had in for the rescaling was (is) in the updateVisibility() method and that wasn't getting called for axes changes. All I had to do was to place a call to that method in the setColumnsToGraph() and it picked up the rescaling nicely.
Good fix, all changes now are reflected in the re-drawn graph.