appendLabel function - clicking on a label throws exception

[hope4555]

1. this is what i get when clicking on the label
   ReferenceError: xScale is not defined

2. This code should not be there. It adds a strange rect above the timeline
   console.log("label click!");
   var point = d3Selection.mouse(this);
   gParent.append("rect")
   .attr("id", "clickpoint")
   .attr("x", point[0])
   .attr("width", 10)
   .attr("height", itemHeight);

[hope4555]

I see it is fixed but npm is no updated