Menus: Don't display "Move" text without direction if there is only one menu item.

props kucrut for initial patch.
fixes #30765.
Built from https://develop.svn.wordpress.org/trunk@31320


git-svn-id: http://core.svn.wordpress.org/trunk@31301 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-admin/js/nav-menu.js

@@ -429,6 +429,8 @@ var wpNavMenu;
 					totalMenuItems = $('#menu-to-edit li').length,
 					hasSameDepthSibling = menuItem.nextAll( '.menu-item-depth-' + depth ).length;
 
+				menuItem.find( '.field-move' ).toggle( totalMenuItems > 1 ); 
+
 				// Where can they move this menu item?
 				if ( 0 !== position ) {
 					thisLink = menuItem.find( '.menus-move-up' );
@@ -1187,6 +1189,7 @@ var wpNavMenu;
 						$( '.drag-instructions' ).hide();
 						ins.removeClass( 'menu-instructions-inactive' );
 					}
+					api.refreshAdvancedAccessibility();
 				});
 		},
 

wp-includes/version.php

@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.2-alpha-31319';
+$wp_version = '4.2-alpha-31320';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.