1.6.5 released

Use MDIUtilities 1.2.54
Use jEditor 1.2.15
Fix the parser throwing an exception if a title level is empty or negative
Emit an error if a title or chapter title is empty
Emit an error if a title or chapter seq or id is empty
Move a lot of parsing test wikis inputs to the package of their respective test
Remove a dependency on Javafx for the PDF and Docx plugins
Fix some cases where the json file for the articles would be incorrect
Fix the library not working on Java 17 by modifying some classes in the jEuclid package
Add the turtle syntax for the syntax highlighting
Fix some editing problems when trying to edit article source files in the built-in editor
Add new options to use the PageRank algorithm for the Search box
Allow to limit the number of results in the Search box