Docs: Add an entry for `$pagenow` global in `WP_Customize_Manager::setup_theme()`.

Props mt8.biz.
Fixes #40297.
Built from https://develop.svn.wordpress.org/trunk@40349


git-svn-id: http://core.svn.wordpress.org/trunk@40256 1a063a9b-81f0-0310-95a4-ce76da25c4cd

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

@@ -462,6 +462,8 @@ final class WP_Customize_Manager {
 	 * Check if customize query variable exist. Init filters to filter the current theme.
 	 *
 	 * @since 3.4.0
+	 *
+	 * @global string $pagenow
 	 */
 	public function setup_theme() {
 		global $pagenow;

wp-includes/version.php

@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.8-alpha-40348';
+$wp_version = '4.8-alpha-40349';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.