Simplify the admin menu notification selector so color schemes don't get stomped.

Merges [28177] to the 3.9 branch.

props celloexpressions.
fixes #27920.

Built from https://develop.svn.wordpress.org/branches/3.9@28204


git-svn-id: http://core.svn.wordpress.org/branches/3.9@28034 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-admin/css/admin-menu-rtl.css

@@ -500,7 +500,7 @@ ul#adminmenu > li.current > a.current:after {
 }
 
 #adminmenu .awaiting-mod,
-#adminmenu span.update-plugins,
+#adminmenu .update-plugins,
 #sidemenu li a span.update-plugins {
 	display: inline-block;
 	background-color: #d54e21;

wp-admin/css/admin-menu.css

@@ -500,7 +500,7 @@ ul#adminmenu > li.current > a.current:after {
 }
 
 #adminmenu .awaiting-mod,
-#adminmenu span.update-plugins,
+#adminmenu .update-plugins,
 #sidemenu li a span.update-plugins {
 	display: inline-block;
 	background-color: #d54e21;