Customize: Ensure textarea for Custom CSS displays as code (in LTR) when an RTL language is active.

Merges [39499] onto 4.7 branch.
Fixes #39085 for 4.7.

Built from https://develop.svn.wordpress.org/branches/4.7@39500


git-svn-id: http://core.svn.wordpress.org/branches/4.7@39440 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/class-wp-customize-manager.php

@@ -4128,6 +4128,9 @@ final class WP_Customize_Manager {
 			'type'     => 'textarea',
 			'section'  => 'custom_css',
 			'settings' => array( 'default' => $custom_css_setting->id ),
+			'input_attrs' => array(
+				'class' => 'code', // Ensures contents displayed as LTR instead of RTL.
+			),
 		) );
 	}
 

wp-includes/version.php

@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.7-RC2-39498';
+$wp_version = '4.7-RC2-39500';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.