Pie: Fix combined data to keep all other original values.

But not only data, color, label, angle, percent as was before.
Allows to store own values in series and use them e.g. in labelFormatter.

jquery.flot.pie.js

@@ -224,13 +224,15 @@ More detail and specific examples can be found in the included HTML file.
 			for (var i = 0; i < data.length; ++i) {
 				var value = data[i].data[0][1];
 				if (numCombined < 2 || value / total > options.series.pie.combine.threshold) {
-					newdata.push({
-						data: [[1, value]],
-						color: data[i].color,
-						label: data[i].label,
-						angle: value * Math.PI * 2 / total,
-						percent: value / (total / 100)
-					});
+					newdata.push(
+						$.extend(data[i], {
+							data: [[1, value]],
+							color: data[i].color,
+							label: data[i].label,
+							angle: value * Math.PI * 2 / total,
+							percent: value / (total / 100)
+						})
+					);
 				}
 			}