title in fancytree needs to be escaped for HTML special characters

public/javascripts/utils.js

@@ -93,4 +93,8 @@ function isTopLevelNode(node) {
 
 function isRootNode(node) {
     return node.key === "root_1";
+}
+
+function escapeHtml(str) {
+    return $('<div/>').text(str).html();
 }