Customize: Ensure `id` for section and panel is passed among `params` to respective templates.

Fixes issue where JS-added Publish Settings section failed to get container element ID set properly to hide its section-meta.

Amends [42025].
See #42337, #42083.

Built from https://develop.svn.wordpress.org/trunk@42035


git-svn-id: http://core.svn.wordpress.org/trunk@41869 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-admin/js/customize-controls.js

@@ -1302,7 +1302,10 @@
 				template = wp.template( 'customize-' + container.containerType + '-default' );
 			}
 			if ( template && container.container ) {
-				return $.trim( template( container.params ) );
+				return $.trim( template( _.extend(
+					{ id: container.id },
+					container.params
+				) ) );
 			}
 
 			return '<li></li>';
@@ -2968,7 +2971,10 @@
 				template = wp.template( 'customize-panel-default-content' );
 			}
 			if ( template && panel.headContainer ) {
-				panel.contentContainer.html( template( panel.params ) );
+				panel.contentContainer.html( template( _.extend(
+					{ id: panel.id },
+					panel.params
+				) ) );
 			}
 		}
 	});

wp-includes/version.php

@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.9-beta4-42034';
+$wp_version = '4.9-beta4-42035';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.