Properly encode the post title. Props koopersmith, nacin. For trunk

git-svn-id: http://svn.automattic.com/wordpress/trunk@17395 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-admin/includes/template.php

@@ -270,7 +270,7 @@ function get_inline_data($post) {
 	if ( ! current_user_can($post_type_object->cap->edit_post, $post->ID) )
 		return;
 
-	$title = esc_attr( trim( $post->post_title ) );
+	$title = htmlspecialchars( trim( $post->post_title ), ENT_QUOTES );
 
 	echo '
 <div class="hidden" id="inline_' . $post->ID . '">