Fix the rounded corners on .widefat, for trunk

git-svn-id: https://develop.svn.wordpress.org/trunk@11674 602fd350-edb4-49c9-b593-d223f7449a82

wp-admin/css/global.css

@@ -375,8 +375,6 @@ ol.ol-decimal > li {
 .widefat {
 	border-width: 1px;
 	border-style: solid;
-	empty-cells: show;
-	border-collapse: collapse;
 	border-spacing: 0;
 	width: 100%;
 	clear: both;

wp-admin/css/ie.css

@@ -338,6 +338,11 @@ table.ie-fixed {
 	padding: 4px 0 22px;
 }
 
+.widefat {
+	empty-cells: show;
+	border-collapse: collapse;
+}
+
 .tablenav a.button-secondary {
 	display: inline-block;
 	padding: 2px 5px;