#17898330 : fixed the bug that category tree was not displayed if a tilte of one of categories contains & (users should recreate cache file to apply this patch)

git-svn-id: http://xe-core.googlecode.com/svn/sandbox@6025 201d5d3c-b55e-5fd7-737f-ddc643e51545

modules/document/document.controller.php

@@ -1257,6 +1257,7 @@
             foreach($list as $category_srl => $node) {
                 $node->mid = $mid;
                 $parent_srl = (int)$node->parent_srl;
+                $node->title = htmlspecialchars($node->title);
                 $tree[$parent_srl][$category_srl] = $node;
             }