Apply data.order to donut/pie chart

c3.js

@@ -1020,7 +1020,7 @@
         pie = d3.layout.pie().value(function (d) {
             return d.values.reduce(function (a, b) { return a + b.value; }, 0);
         });
-        if (!__pie_sort || !__donut_sort) { // TODO: this needs to be called by each type
+        if (!__data_order || !__pie_sort || !__donut_sort) {
             pie.sort(null);
         }
 

htdocs/samples/chart_donut.html

@@ -22,6 +22,7 @@
           onmouseover: function (d, i) { console.log("onmouseover", d, i, this); },
           onmouseout: function (d, i) { console.log("onmouseout", d, i, this); },
           onclick: function (d, i) { console.log("onclick", d, i, this); },
+          order: null // set null to disable sort of data.
         },
         axis: {
           x: {