1.6.9 released

Use MDIUtilities 1.3.11
Fix a case where there would be a NPE in the GUI when typing a wrong file in the index file, output directory, or css selector (in the text field of the file selector)
Fix the 'info' references on 'moreInfo' elements wrongly reference the article rather than the article anchor if there is an anchor on the reference
Allow to use the name 'package' to specify a package in the ref reference in the help content (rather than 'articlePackage')
Fix a case where sub-lists in lists were not parsed in the correct order
Check if there are packages defined under packages and emit an error if it is the case
Add a new "package" property which can be used in articles to get the package name in the article
Allow to use the "includeSubdirectories" property name to use sub-directories for roots
Fix an incorrect parsing f there are packages under sub-directories of the inputs, but the "includeSubdirectories" property is not set