REST API: Add home_url to API index to avoid confusion with site_url.

Confusion abound, the API index is the generic term `url` to display the `site_url`. New `home` key will display the `home_url` in the index as well.

Fixes #35647.
Built from https://develop.svn.wordpress.org/trunk@37031


git-svn-id: http://core.svn.wordpress.org/trunk@36998 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/rest-api/class-wp-rest-server.php

@@ -945,6 +945,7 @@ class WP_REST_Server {
 			'name'           => get_option( 'blogname' ),
 			'description'    => get_option( 'blogdescription' ),
 			'url'            => get_option( 'siteurl' ),
+			'home'           => home_url(),
 			'namespaces'     => array_keys( $this->namespaces ),
 			'authentication' => array(),
 			'routes'         => $this->get_data_for_routes( $this->get_routes(), $request['context'] ),

wp-includes/version.php

@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.5-beta4-37030';
+$wp_version = '4.5-beta4-37031';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.