Ensure we globally replace [ and ] in customizer control IDs, to match the PHP.

props westonruter.
fixes #25238.

Built from https://develop.svn.wordpress.org/trunk@25680


git-svn-id: http://core.svn.wordpress.org/trunk@25596 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-admin/js/customize-controls.js

@@ -36,7 +36,7 @@
 			$.extend( this, options || {} );
 
 			this.id = id;
-			this.selector = '#customize-control-' + id.replace( ']', '' ).replace( '[', '-' );
+			this.selector = '#customize-control-' + id.replace( /\]/g, '' ).replace( /\[/g, '-' );
 			this.container = $( this.selector );
 
 			settings = $.map( this.params.settings, function( value ) {