Fancytree unit tests: latest jQuery versions

QUnit 2.9.2; Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)

1. Initialization: Init node with custom data (2)Rerun23 ms
   1. add custom string data@ 11 ms
   2. add custom bool data@ 11 ms

   Source: at HTMLDocument.<anonymous> (http://139.255.61.91/coba/fancytreeview/test/unit/test-core.js:230:7) at e (http://code.jquery.com/jquery-3.4.1.min.js:2:29453) at t (http://code.jquery.com/jquery-3.4.1.min.js:2:29755)

• simple node (no explicit id, so a default key is generated)
• item1 with key and tooltip
• item2 with html inside a span tag
• this nodes uses 'nolink', so no <a> tag is generated
• using href
• node with some extra classes (will be added to the generated markup)
• Folder 1
• Simple node with active children (expand)
  • Sub-item 2.1
  • Sub-item 2.2
• Lazy folder
• Lazy folder (preload)
• Lazy folder (expand on load)