Merged the latest version 2.11 changes
Translate timestamps into readable dates in `DC_Table::show()` (see #5198)
Find e-mail addresse like `a@b.com` in `String::encodeEmail()` (see #5175)
Random images now open in the lightbox if configured (see #5191)
Consider the `save_callback` of the password field in `tl_user` when a back end user is forced to change his password (see #5138)
Do not send a 404 header if an enclosure is requested and cannot be find by a module; there might be another module which can (see #5178)
Update the database if a file is being uploaded in the front end (see #5137)
Updated all links to contao.org (see #5202)
Throw an `OutOfBoundsException` in case of an invalid date (see #5086)
Correctly build the comments subscription confirmation URL (fixes #5201)
Do not try to limit the template selection to a particular theme but show all available themes instead (see #5095)
Updated all language files
Modules and Hybrids included via content element were shown even if the content element was invisible or not published (see #5203)
Replaced `new Array()` with `[]` in the tablesorter script
Throw an error if FileTree or PageTree widgets are left blank although they are marked as mandatory in the DCA (see #5131)
Lazy load the templates in the DCA so the install tool does not break (see #5210)
Made a few minor changes to the form component of the CSS framework (see #5214)
Updated all language files
Version 3.0.2 candidate
Merge branch 'hotfix/3.0.2' into develop

Conflicts:
	assets/contao/css/form.css
	assets/mootools/tablesort/js/tablesort.js
	assets/tinymce/plugins/typolinks/editor_plugin.js
	system/docs/CHANGELOG.md
	system/modules/comments/dca/tl_content.php
	system/modules/core/dca/tl_content.php
	system/modules/core/widgets/PageTree.php