Update c3.js and c3.min.js

c3.js

@@ -1804,7 +1804,8 @@
     c3_chart_internal_fn.mapTargetsToUniqueXs = function (targets) {
         var $$ = this;
         var xs = $$.d3.set($$.d3.merge(targets.map(function (t) { return t.values.map(function (v) { return +v.x; }); }))).values();
-        return $$.isTimeSeries() ? xs.map(function (x) { return new Date(+x); }) : xs.map(function (x) { return +x; });
+        xs = $$.isTimeSeries() ? xs.map(function (x) { return new Date(+x); }) : xs.map(function (x) { return +x; });
+        return xs.sort(function (a, b) { return a < b ? -1 : a > b ? 1 : a >= b ? 0 : NaN; });
     };
     c3_chart_internal_fn.addHiddenTargetIds = function (targetIds) {
         this.hiddenTargetIds = this.hiddenTargetIds.concat(targetIds);
@@ -3371,14 +3372,16 @@
                 .style("fill-opacity", forFlow ? 0 : this.opacityForText.bind(this))
         ];
     };
-    c3_chart_internal_fn.getTextRect = function (text, cls) {
+    c3_chart_internal_fn.getTextRect = function (text, cls, element) {
         var dummy = this.d3.select('body').append('div').classed('c3', true),
             svg = dummy.append("svg").style('visibility', 'hidden').style('position', 'fixed').style('top', 0).style('left', 0),
+            font = this.d3.select(element).style('font'),
             rect;
         svg.selectAll('.dummy')
             .data([text])
           .enter().append('text')
             .classed(cls ? cls : "", true)
+            .style('font', font)
             .text(text)
           .each(function () { rect = this.getBoundingClientRect(); });
         dummy.remove();
@@ -4026,7 +4029,7 @@
 
         function getTextBox(textElement, id) {
             if (!$$.legendItemTextBox[id]) {
-                $$.legendItemTextBox[id] = $$.getTextRect(textElement.textContent, CLASS.legendItem);
+                $$.legendItemTextBox[id] = $$.getTextRect(textElement.textContent, CLASS.legendItem, textElement);
             }
             return $$.legendItemTextBox[id];
         }
@@ -4238,9 +4241,9 @@
     c3_chart_internal_fn.xForTitle = function () {
         var $$ = this, config = $$.config, position = config.title_position || 'left', x;
         if (position.indexOf('right') >= 0) {
-            x = $$.currentWidth - $$.title.node().getBBox().width - config.title_padding.right;
+            x = $$.currentWidth - $$.getTextRect($$.title.node().textContent, $$.CLASS.title, $$.title.node()).width - config.title_padding.right;
         } else if (position.indexOf('center') >= 0) {
-            x = ($$.currentWidth - $$.title.node().getBBox().width) / 2;
+            x = ($$.currentWidth - $$.getTextRect($$.title.node().textContent, $$.CLASS.title, $$.title.node()).width) / 2;
         } else { // left
             x = config.title_padding.left;
         }
@@ -4248,7 +4251,7 @@
     };
     c3_chart_internal_fn.yForTitle = function () {
         var $$ = this;
-        return $$.config.title_padding.top + $$.title.node().getBBox().height;
+        return $$.config.title_padding.top + $$.getTextRect($$.title.node().textContent, $$.CLASS.title, $$.title.node()).height;
     };
     c3_chart_internal_fn.getTitlePadding = function() {
         var $$ = this;