Remove script tags when printing an article as PDF (see #5626)
Upload Widget: return array of uploaded files
Do not mark request parameters as used in `Frontend::addToUrl()`
Ignore files in `.tx/purge`
Update all language files
Update SwiftMailer to version 4.3.1
Throw an exception if the database connection cannot be established (see #4071)
Remove ACE files not needed in Contao
More robust .xlf to .php conversion
Fix the basic style sheet
Fix the CHANGELOG
Fix the phpDoc comments of the moved classes
Escape the single quotation mark in the simple modal title strings

Signed-off-by: xchs <github@gmx.net>
Fix a few minor spelling and typing errors

- Fix a few typos found in the source code files
- Various other amendments

Signed-off-by: xchs <github@gmx.net>
Escape the ampersand characters in the page layout DCA

Signed-off-by: xchs <github@gmx.net>
Add "PHPSESSID" to the `TL_NOINDEX_KEYS` list
Return the uploaded files in the upload widget (see #5631)
Correctly export the `pubDate` of calendar feeds (see #5641)
Merge branch 'hotfix/3.0.7' into develop

Conflicts:
	system/modules/core/library/Contao/Controller.php
Merge pull request #5653 from xchs/hotfix/escape-ampersands