Don't switch contextual help tabs when tabbing around. props neil_pie. see #28209.

Built from https://develop.svn.wordpress.org/trunk@28869


git-svn-id: http://core.svn.wordpress.org/trunk@28669 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-admin/js/common.js

@@ -145,7 +145,7 @@ screenMeta = {
 /**
  * Help tabs.
  */
-$('.contextual-help-tabs').delegate('a', 'click focus', function(e) {
+$('.contextual-help-tabs').delegate('a', 'click', function(e) {
 	var link = $(this),
 		panel;