Allow the dashboard widgets to be arranged in up to four columns. The number of columns can be selected from the Screen Options tab.

git-svn-id: https://develop.svn.wordpress.org/trunk@10641 602fd350-edb4-49c9-b593-d223f7449a82

wp-admin/wp-admin.css

@@ -1320,7 +1320,7 @@ table.form-table td .updated {
 }
 
 /* Post Screen */
-#normal-sortables {
+#post-body-content #normal-sortables {
 	min-height: 50px;
 }
 
@@ -1539,6 +1539,10 @@ table.form-table td .updated {
 	font-weight: normal;
 }
 
+#dashboard-widgets .meta-box-sortables {
+	margin: 0 5px;
+}
+
 .meta-box-sortables .postbox .handlediv {
 	float: right;
 	width: 23px;
@@ -2968,3 +2972,20 @@ ol {
 	list-style-type: decimal;
 	margin-left: 2em;
 }
+
+.postbox-container {
+	float: left;
+	padding-right: 0.5%;
+}
+
+.postbox-container .meta-box-sortables {
+	min-height: 300px;
+}
+
+.temp-border {
+	border: 1px dotted #ccc;
+}
+
+.columns-prefs label {
+	padding: 0 5px;
+}