jqueryui.com: Sort demos by title

(cherry picked from commit 78349dc)

Conflicts:

	themes/jquery/js/scripts.js

Author: jzaefferer

mu-plugins/jqueryui.com/jquery-filters.php

@@ -11,13 +11,15 @@
 
 	$plugin = $post->post_name;
 	$demoList = json_decode( file_get_contents( GW_RESOURCE_DIR . '/demos/demo-list.json' ) );
-	$defaultDemo = $demoList->$plugin->default;
+	$demos = $demoList->$plugin;
+	$defaultDemo = $demos[ 0 ];
 
 	$demoContent .=
 		'<div class="demo-list">' .
 			'<h2>Examples</h2>' .
 			'<ul>';
-	foreach ( $demoList->$plugin as $filename => $demo ) {
+	foreach ( $demoList->$plugin as $demo ) {
+		$filename = $demo->filename;
 		$demoContent .=
 			($filename === 'default' ? '<li class="active">' : '<li>') .
 				'<a href="/resources/demos/' . $plugin . '/' . $filename . '.html">' .