Add Support For D3 v4 about ng-knob HOT 5 OPEN

line:17 ++    /* d3 V4 ease functions */
line:18 ++    this.animations = {
line:19 ++        lenear: d3.easeLinear,
line:20 ++        bounce: d3.easeBounce
line:21 ++    };

line:38 --    //var arc = d3.svg.arc().innerRadius(innerRadius).outerRadius(outerRadius).startAngle(startAngle).endAngle(endAngle).cornerRadius(cornerRadius);
line:39 ++    var arc = d3.arc().innerRadius(innerRadius).outerRadius(outerRadius).startAngle(startAngle).endAngle(endAngle).cornerRadius(cornerRadius);

line:43 --    //var elem = svg.append("path").attr("id", label).attr("d", arc).style(style).attr("transform", "translate(" + this.options.size / 2 + ", " + this.options.size / 2 + ")");
line:44 ++    var elem = svg.append("path")
line:45 ++                  .attr("id", label)
line:46 ++                  .attr("d", arc);
line:46 ++
line:48 ++    for (var key in style) {
line:49 ++        elem.style(key,style[key]);
line:50 ++    }
line:51 ++
line:52 ++    elem.attr("transform", "translate(" + this.options.size / 2 + ", " + this.options.size / 2 + ")");
line:53 ++

line:224 --    //var dragBehavior = d3.behavior.drag().on("drag", dragInteraction).on("dragend", clickInteraction);
line:225 ++    var dragBehavior = d3.drag().on("drag", dragInteraction).on("end", clickInteraction);

line:228 --    //that.valueElem.transition().ease(that.options.animate.ease).duration(that.options.animate.duration).tween("", function() {
line:229 ++    that.valueElem.transition().ease(that.animations[that.options.animate.ease]).duration(that.options.animate.duration).tween("", function() {