Upgrade: Add Twenty Seventeen to `$_new_bundled_files`.

This indicates that Twenty Seventeen should be installed with a WordPress upgrade.

See #38372.
Built from https://develop.svn.wordpress.org/trunk@38921


git-svn-id: http://core.svn.wordpress.org/trunk@38864 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-admin/includes/update-core.php

@@ -743,6 +743,7 @@ $_new_bundled_files = array(
 	'themes/twentyfourteen/' => '3.8',
 	'themes/twentyfifteen/'  => '4.1',
 	'themes/twentysixteen/'  => '4.4',
+	'themes/twentyseventeen/' => '4.7',
 );
 
 // If not explicitly defined as false, don't install new default themes.

wp-includes/version.php

@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.7-alpha-38920';
+$wp_version = '4.7-alpha-38921';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.