1.6.11 released

Use MDIUtilities 1.3.15
Use scriptHelper 1.6.11.1
Use jSoup 1.20.1
Allow to define sub-categories in categories in images definitions
Allow to define sub-categories in categories in resources definitions
Allow to set a main article for a category
Allow to define parent categories for categories
Emit an error if a category is defined twice in categories descriptions
Emit an error if the dictionary is defined twice
The first character of the titles of each category is now in upper case
Change the color of the information type message boxes to make it less flashy
Set a more visible background in code, pre, and source element when the background attribute is set , previously the background was almost white
Add a padding for the code elements to make their background more natural
Support the categories description format in the editor, previously it was identical to the articles
Fix the code and pre background declarations in the JavaFX help
Fix the source element never having a background even if a background is specified