Fixed the look of the legend color boxes in IE

git-svn-id: https://flot.googlecode.com/svn/trunk@41 1e0a6537-2640-0410-bfb7-f154510ff394

jquery.flot.js

@@ -950,7 +950,7 @@
                     label = options.legend.labelFormatter(label);
                 
                 fragments.push(
-                    '<td class="legendColorBox"><div style="border:1px solid ' + options.legend.labelBoxBorderColor + ';padding:1px"><div style="width:14px;height:10px;background-color:' + series[i].color + '"></div></div></td>' +
+                    '<td class="legendColorBox"><div style="border:1px solid ' + options.legend.labelBoxBorderColor + ';padding:1px"><div style="width:14px;height:10px;background-color:' + series[i].color + ';overflow:hidden"></div></div></td>' +
                     '<td class="legendLabel">' + label + '</td>');
             }
             if (rowStarted)