Declare the `$update_count` and `$update_current` properties for `WP_Upgrader`.

See #30224.

Built from https://develop.svn.wordpress.org/trunk@30171


git-svn-id: http://core.svn.wordpress.org/trunk@30171 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-admin/includes/class-wp-upgrader.php

@@ -24,6 +24,8 @@ class WP_Upgrader {
 	public $strings = array();
 	public $skin = null;
 	public $result = array();
+	public $update_count = 0;
+	public $update_current = 0;
 
 	public function __construct($skin = null) {
 		if ( null == $skin )

wp-includes/version.php

@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.1-alpha-30170';
+$wp_version = '4.1-alpha-30171';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.