fix handling of legacy database.sql multicolumn keys in dca extractor
Merge branch 'hotfix/3.2.9'
Fix two coding style issues
Return a boolean value in `Mysqli::set_database()` (see #6948)
Add a missing "aria-haspopup" attribute in the navigation template
Adjust the `build.xml` file
Handle the case that the child template and the parent template have the same name (see #6939)
Correctly add the WAI-ARIA attributes (see #6217)
Correctly wrap long labels in the tree view (see #6954)
Fix a typo in the cron script
Correctly escape the option value in `Stylect.update()`
Only log the cronjob execution if the debug mode is enabled (see #4729)
Add the referer ID to the profile link in the back end
Remove two redundant "TYPOlight" references
Fix the CSS formatting of the page/file selector widget
Do not disable mod_rewrite for static files (see #6588)
Correctly wrap long labels in the tree view (see #6954)
Correctly overwrite the article template (see #6938)
Sort the templates in `Controller::getTemplateGroup()`
Update the example website (fixes #6957)